CONFIDENTIAL

                                                                  EXHIBIT 10.31




                              LICENSE AGREEMENT


                               By and Between



                     NETSCAPE COMMUNICATIONS CORPORATION



                                   and



                                IMGIS, INC.



                         Dated as of February 1, 1999






                                                              CONFIDENTIAL

                                LICENSE AGREEMENT


        This LICENSE AGREEMENT (the "Agreement") is entered into as of 
February 1, 1999 (the "Effective Date") by and between Netscape 
Communications Corporation, a Delaware corporation having its principal 
office at 501 East Middlefield Road, Mountain View, California 94043 
("NETSCAPE"), and IMGIS, INC., a California corporation doing business as 
"AdForce" and having its principal office at 10101 N. DeAnza Boulevard, Suite 
210, Cupertino, California 95014 ("ADFORCE").


                                   WITNESSETH:


        WHEREAS, the parties hereto wish to provide the terms and conditions 
under which ADFORCE will supply NETSCAPE Ad Serving Services (as defined 
below) for the term provided herein; and 

        WHEREAS, NETSCAPE desires to obtain, and ADFORCE is willing to grant 
to NETSCAPE at the times and on the specific conditions stated herein, a 
worldwide, perpetual and nonexclusive license to use, and to serve interactive 
advertisements using, ADFORCE's ad serving, trafficking, targeting and related 
technology on the terms and subject to the conditions set forth herein.

        NOW, THEREFORE, in consideration of the foregoing, of the mutual 
covenants and undertakings contained herein and of other good and valuable 
consideration, the receipt and sufficiency of which are hereby acknowledged, 
the Parties, intending to be legally bound, hereby agree as follows:


                                   ARTICLE 1
                                  DEFINITIONS

        In addition to other terms defined elsewhere herein, the following 
terms will have the following meanings when used herein (any term defined in 
the singular will have the same meaning when used in the plural and vice 
versa, unless stated otherwise):

        1.1 "AD SERVING SERVICES" has the meaning set forth in Section 6.1 
below.

        1.2 "AFFILIATE" of any specified Person means any other Person that 
directly, or indirectly through one or more intermediaries, controls, is 
controlled by, or is under common control with the specified Person.

        1.3  "BANNER EXCHANGE" means the NETSCAPE advertising program which 
offers companies the opportunity to promote their site, which site may or may 
not have a NETSCAPE domain name, by contributing impressions into a banner 
exchange network




                                                                  CONFIDENTIAL

that would in turn give such site the right to impressions on other sites 
within that banner exchange network. Typically, such sites receive one 
impression on the banner exchange network for every two they give, with the 
balance available for the banner exchange network to sell to advertisers. The 
program is targeted at small sites with low-value inventory which are not 
candidates for the AdForce Service and, therefore, noncompetitive with 
ADFORCE. Examples of banner exchange networks include LinkExchange, SmartAge 
and Hyperbanner.

        1.4  "NETSCAPE AFFILIATE" means any Affiliate of NETSCAPE, where the 
term "control" for purposes of Section 1.2 means the direct or indirect 
ownership or control by NETSCAPE of twenty-five percent (25%) or more of the 
stock or other equity interests of such Person entitled to vote for the 
election of members of the Board of Directors or similar governing body of 
such Person; provided, however, that such Person shall cease to be a NETSCAPE 
Affiliate if and when such equity interest becomes less than twenty-five 
percent (25%) for any reason other than as a result of dilution, and 
provided, further, that if such equity interest becomes less than twenty-five 
percent (25%) as a result of dilution, such Person shall cease to be a 
NETSCAPE Affiliate if and when such percentage equity interest is further 
reduced for any reason other than as a result of dilution.

        1.5  "COVERED NETSCAPE PARTNER SITE PAGES" means the interactive site 
pages of a NETSCAPE Partner provided that: (a) such site pages are marketed 
or promoted, and intended to be accessible, to Netcenter visitors only, 
meaning links to such Site Pages are available only through Netcenter and not 
from the Partner site; and (b) NETSCAPE or a NETSCAPE Affiliate has the right 
to serve and to sell the advertising inventory for such site.

        1.6  "NETSCAPE NETCENTER" means the United States, English language 
NETSCAPE brand online website and information service, including future 
modifications to, implementations of and successors of such service.

        1.7  "NETSCAPE NETWORK" means: (a) NETSCAPE Netcenter, (b) any other 
domestic U.S. online product or service owned or operated by NETSCAPE, 
excluding mere links to Third Party products or services that are accessible 
through distribution channels other than NETSCAPE Netcenter and excluding any 
products consisting of the Technology, or any repackaged or reengineered 
version of the Technology, that are distributed commercially to Third Parties 
other than NETSCAPE Affiliates; and (c) any other product or service 
distributed under the brand name of NETSCAPE other than under a mere 
trademark license of such brand name, provided that NETSCAPE contributes 
substantially to the creation or development of such product or service; (d) 
Banner Exchange NETSCAPE Partner site; and (e) Covered NETSCAPE Partner Site 
Pages.

        1.8 "NETSCAPE PARTNER" means any Person with which NETSCAPE or a 
NETSCAPE Affiliate has a joint venture, partnership or other contractual 
relationship for


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the purposes of commerce, advertising, online access, or the provision by such 
Person of content or information for the NETSCAPE Network.

         1.9 "DATA AGREEMENT MATERIAL BREACH" has the meaning set forth in 
Section 14.2.2 below.

        1.10 "DEMOGRAPHIC DATA" has the meaning set forth in the Demographic 
Data Agreement.

        1.11 "DEMOGRAPHIC DATA AGREEMENT" means the Demographic Data 
Agreement between NETSCAPE and ADFORCE, should the parties elect to proceed 
with such and agreement.

        1.12 "DEPLOYMENT DATE" has the meaning set forth in Section 3.2 below.

        1.13 "DEVELOPMENT SERVICES" has the meaning set forth in Section 5.1 
below.

        1.14 "FULLY BURDENED COSTS" of ADFORCE Personnel in the provision of 
Services hereunder means, for each ADFORCE Personnel providing any Services 
to NETSCAPE, an amount equal to the sum of the following:

             (a) (i) If such Personnel is an employee of ADFORCE, the wages 
                 and benefits payable by ADFORCE to such employee multiplied 
                 by the percentage of time spent by such employee in the 
                 provision of such Services to NETSCAPE relative to the 
                 total amount of time spent by such employee in his or her 
                 employment with ADFORCE, as measured on a daily basis and 
                 charged on an hourly basis, which amount shall in no event 
                 exceed $100 per hour, or

                 (ii) if such Personnel is an independent contractor of 
                 ADFORCE, the fees (excluding out-of-pocket expenses paid to 
                 such contractor) payable to such contractor by ADFORCE 
                 multiplied by the percentage of time spent by such 
                 contractor in the provision of such Services to NETSCAPE 
                 relative to the total amount of time spent by such contractor
                 in the provision of services to ADFORCE, as measured on a 
                 daily basis and charged on an hourly basis, which amount 
                 shall in no event exceed $100 per hour; plus

             (b) ADFORCE's direct out-of-pocket costs in the provision by 
                 such Personnel of such Services to NETSCAPE but only to the 
                 extent that NETSCAPE is not otherwise obligated hereunder to 
                 provide reimbursement to ADFORCE for such direct costs; plus

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                                                                CONFIDENTIAL

         (c) An amount (representing a reasonable allocation of overhead
             expenses) equal to ten percent (10%) of the direct out-of-pocket
             costs provided for in subpart (b) above.

Out-of-pocket costs and expenses, for purposes of this definition, means 
travel, lodging and other non-compensatory costs or expenses. The $100 per 
hour maximum amount referred to in subparts (a)(i) and (a)(ii) above shall be 
adjusted by mutual agreement of the Parties three (3) years following the 
Effective Date hereof to reflect any applicable increase or decrease in the 
cost of living.

    1.15  "ADFORCE SYSTEM" means any software owned and/or used by, and/or 
licensed to, ADFORCE that enables operators of interactive sites and 
interactive advertisers to schedule, monitor, serve, traffic and/or target 
interactive advertising, including the system used by ADFORCE to provide 
services under the AdForce service mark and any related or successor system.

    1.16  "IMPLEMENTATION DATE" means the date as of which NETSCAPE first 
provides Demographic Data (as defined in the Demographic Data Agreement) to 
ADFORCE.

    1.17  "IMPROVEMENT" means any modification, customization, upgrade, 
update, enhancement, patch, "bug" fix or other improvement to the Technology.

    1.18  "LOSSES" means losses, liabilities, suits, claims, costs, expenses 
(including reasonable attorneys' fees), penalties, fines, judgments and/or 
damages (including personal injury or property damages, but excluding 
indirect, incidental, special or consequential damages suffered by the 
indemnified Party).

    1.19  "MATERIALLY LIMIT OR PROHIBIT" shall have the meaning to be set 
forth in the Demographic Data Agreement. In addition, for purposes of this 
Agreement, NETSCAPE shall be deemed to "Materially Limit or Prohibit" the use 
by ADFORCE of Demographic Data: (a) six months following the expiration of 
the term (including any renewal term) of the Demographic Data Agreement; or 
(b) six months following the termination of the Demographic Data Agreement 
(other than as a result of breach or nonperformance by NETSCAPE) provided 
that, if the event giving rise to such termination is disputed by the 
Parties, there has been a final determination of such termination event by a 
court of competent jurisdiction (excluding any determination in connection 
with the granting of equitable relief).

    1.20  "PARTY" means NETSCAPE or ADFORCE, and "PARTIES" means NETSCAPE and 
ADFORCE.

    1.21  "PERMITTED PURPOSES" means to serve, traffic and/or target 
advertisements or other information or materials, and to perform such other 
functions as the Technology

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(including any Improvements) is capable of, for NETSCAPE's own internal 
purposes or for or on behalf of any of the NETSCAPE Network.

    1.22  "PERSON" means a natural person, a corporation, a partnership, a 
trust, a joint venture, any governmental authority, or any other entity or 
organization.

    1.23  "PERSONNEL" means employees and/or independent contractors.

    1.24  "SERVICES" means any services provided by ADFORCE pursuant to this 
Agreement, including Ad Serving Services, Development Services and 
Technical Support Services.

    1.25  "SOFTWARE" means software included in the Technology.

    1.26  "TECHNICAL SUPPORT SERVICES" has the meaning set forth in Section 
4.1 below.

    1.27  "TECHNOLOGY" means all software (in both source code and object 
code form), inventions, discoveries, designs, tools, know-how and other 
technology, including any Improvements thereto, now or hereafter developed, 
owned and/or used by, and/or licensed to, ADFORCE or any of its Affiliates 
relating to the serving, trafficking and/or targeting of advertisements or 
other information or materials (including all software, inventions, 
discoveries, designs, tools, know-how and other technology comprising or used 
in connection with the AdForce System and all Third Party software and other 
Third Party technology integrated in or necessary for the successful 
operation of such technology (except for commercially available Third Party 
software that has not been modified to meet ADFORCE's needs, where ADFORCE 
does not have the right to provide such software to NETSCAPE)), and all 
documentation for such technology. Without limiting the generality of the 
foregoing, in no event shall "Technology" include (a) demographic data owned 
by or licensed to ADFORCE from any Third Parties or (b) Third Party software 
that is not integrated in or necessary for the successful operation of such 
technology which is developed by ADFORCE as a "work made for hire" for a 
Third Party that is not an Affiliate of ADFORCE. For purposes of the 
foregoing definition, an "Affiliate" of ADFORCE means any Affiliate of 
ADFORCE where the term "control" means the direct or indirect ownership or 
control by ADFORCE of twenty-five percent (25%) or more of the stock or other 
equity interests of such Person entitled to vote for the election of members 
of the Board of Directors or similar governing body of such Person.

    1.28  "THIRD PARTY" means any Person that is not a Party to this 
Agreement.

    1.29  "WORK PRODUCTS" means any Improvements, designs, drawings, 
specifications, documentation, computer software, reports, training 
materials, inventions, discoveries and other items made by or on behalf of 
ADFORCE in connection with the provision of Development Services.

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                                                                CONFIDENTIAL

                                    ARTICLE 2
                                GRANT OF LICENSE

    2.1  LICENSE GRANT.

         (a)  Subject to the terms and conditions hereof, and effective upon 
completion by NETSCAPE of its pending merger (the "AOL Merger") with a 
wholly-owned subsidiary of America Online, Inc., ADFORCE grants to NETSCAPE 
a perpetual, worldwide, nonexclusive, nontransferable (except as set forth in 
Section 15.12 below), royalty-free license under all of ADFORCE's patent, 
copyright, trade secret and other proprietary rights to use, reproduce, 
adapt, transmit, perform, display and otherwise practice the Technology or 
any part thereof, other than commercially available Third Party software that 
ADFORCE has the right to provide to NETSCAPE only upon payment of a fee to 
the Third Party, solely for the Permitted Purposes. If for any reason the AOL 
Merger is affirmatively canceled or does not otherwise occur within six (6) 
months from the date hereof, then the license grants set forth herein and the 
provisions set forth in Articles 3 and 4.1 and 4.2 below shall be null and 
void, and NETSCAPE shall have no license rights whatsoever to the Technology. 
In such event, within sixty (60) days from the earlier of (i) the date the 
AOL Merger is affirmatively canceled or (ii) August 1, 1999, NETSCAPE and 
ADFORCE will enter into a source code escrow agreement in form and substance 
mutually acceptable to the parties. Under such agreement, ADFORCE will 
deposit the source and object code for the Technology into an escrow with a 
third party escrow company acceptable to the Parties. Such source code escrow 
agreement will provide for the release of the source and object code to 
NETSCAPE if ADFORCE ceases to do business, undergoes a bankruptcy or 
insolvency proceeding, makes an assignment for the benefit of creditors or 
experiences similar occurrences. In the event of a critical failure as 
described in Section 4.3 below, such source code escrow agreement will 
provide for the temporary release of the source and object code to NETSCAPE 
for the duration of such critical failure. If ADFORCE breaches this 
Agreement, the source code escrow agreement will provide for the release of 
the source and object code to NETSCAPE, which NETSCAPE will then be able to 
use for a period of one year from the date of such breach, after which period 
NETSCAPE shall have no further rights of use. For purposes of this section 
only, in order to be in breach of the Performance Metrics of Exhibit A, 
ADFORCE must be in breach of at least 2 of the 4 Performance Metrics 
described in Exhibit A, including at least one of either Exhibit A, Section 
7(A) or 7(B).

         (b)  Subject to subsection 2.1(a) above, if any Technology consists 
of commercially available Third Party software that ADFORCE has the right to 
provide to NETSCAPE only upon payment of a fee to the Third Party, NETSCAPE 
may, by written notice to ADFORCE and payment of such fee, require ADFORCE to 
grant to NETSCAPE a perpetual, worldwide, nonexclusive, nontransferable 
(except as set forth in Section 15.12 below), royalty-free (except for such 
fee) license under all applicable patent, copyright, trade secret and other 
proprietary rights to use, reproduce, adapt, transmit perform, display and 
otherwise practice such Technology or any part thereof solely for the 
Permitted Purposes (but only to the extent of ADFORCE's rights in such 
Technology).

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         (c)  The Parties agree that neither the licenses to be granted in 
this Section 2.1 nor any other provisions of this Agreement impose or shall 
be construed to impose any obligation upon NETSCAPE to use or otherwise 
practice the Technology. ADFORCE agrees that it shall not bring any action in 
law or equity, or any other judicial or nonjudicial proceeding, against 
NETSCAPE asserting that the use by NETSCAPE of any patent rights claiming the 
Technology that are now or hereafter owned by or licensed to ADFORCE or any 
other Technology infringes or otherwise violates any patent, copyright, trade 
secret or other proprietary rights of ADFORCE.

    2.2  EXERCISE OF RIGHTS. Following effectiveness of the licenses to be 
granted herein pursuant to Section 2.1(a) above, NETSCAPE may exercise its 
rights in and to the Technology at any location, on any hardware, and with 
respect to all, none or any portion or combination of the Technology. 
Notwithstanding the foregoing, any proposed exercise by NETSCAPE of such 
rights shall be subject to the provisions of Section 15.2 below. Except as 
set forth in Section 6.1 below, nothing in this Agreement shall obligate 
NETSCAPE to use the Technology or to use a designated server or site in 
connection with such Technology.

    2.3  USE OF PERSONNEL. NETSCAPE may exercise its rights hereunder through 
Personnel who are obligated by written agreement to maintain the Technology 
in confidence and restrict their use of the Technology pursuant to terms 
comparable to those set forth in Article 13.


                                  ARTICLE 3
                                  DELIVERY

    3.1  INITIAL DELIVERY. Provided the license becomes effective per 
Section 2.1(a) above, within forty-five (45) days after the effective date of 
the AOL Merger, ADFORCE shall deliver to NETSCAPE: (a) one machine-readable 
copy of the object code for the Software; (b) one copy of available technical 
and user documentation for the Technology in printed and machine-readable 
format as available; and (c) one machine-readable copy of the source code for 
the Software. Such delivery shall be transmitted electronically or by any 
other means agreed upon by ADFORCE and NETSCAPE.

    3.2  DELIVERY OF IMPROVEMENTS AND OTHER TECHNOLOGY.

         (a)  Provided the license becomes effective per Section 2.1(a) 
above, ADFORCE shall use commercially reasonable efforts regularly to develop 
Improvements to adapt the Technology to changes in related technologies and 
in market and user requirements and to remain competitive with alternative 
technologies for the serving, trafficking and/or targeting of advertisements 
or other information or materials.

         (b)  Provided the license becomes effective per Section 2.1(a) 
above, at such times as reasonably requested by NETSCAPE, ADFORCE shall 
provide NETSCAPE with any Improvements made by or on behalf of ADFORCE and 
any other Technology

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                                                                CONFIDENTIAL

requested by NETSCAPE that is existing and not then in the possession of 
NETSCAPE. In addition, provided the license becomes effective per Section 
2.1(a) above and commencing no later than forty-five (45) days after such 
time that NETSCAPE determines to deploy the Technology in whole or in part 
(the "Deployment Date"), ADFORCE shall provide to NETSCAPE on a quarterly 
basis the then current version of the source code for the Software and shall 
provide to NETSCAPE any and all Improvements, including upgrades, updates, 
enhancements, patches and "bug" fixes, prior to or concurrently with their 
installation or release, by any means requested by NETSCAPE (including 
electronically), along with the applicable documentation related to such 
Improvement.

         (c)  Provided the license becomes effective per Section 2.1(a) 
above, ADFORCE shall provide all Improvements and other Technology, other 
than Improvements provided in the provision of Development Services, to 
NETSCAPE without any additional charge or fee. Notwithstanding the foregoing, 
(i) if the license becomes effective under Section 2.1(a) above, but the 
Parties have not executed a Demographic Data Agreement, or (ii) if the 
license becomes effective under Section 2.1(a) above and the Parties have 
executed a Demographic Data Agreement but NETSCAPE ceases to be in compliance 
with all of its material obligations under the Demographic Data Agreement or 
Materially Limits or Prohibits the use by ADFORCE of Demographic Data, and 
NETSCAPE desires to continue receiving Improvements from ADFORCE, then 
NETSCAPE shall pay to ADFORCE on an annual basis a reasonable update fee to 
be agreed upon by the Parties for all Improvements developed for so long as 
NETSCAPE is not in compliance with all of its material obligations under the 
Demographic Data Agreement or Materially Limits or Prohibits the use by 
ADFORCE of Demographic Data; provided that such fee shall not exceed (i) 
ADFORCE's customary update fees for such Improvements in arm's length 
transactions with its licensees, if ADFORCE then licenses the Technology to 
Third Parties, or (ii) update fees charged by other licensors of comparable 
systems for serving, trafficking and/or targeting of advertisements or other 
information or materials, but not less than ADFORCE's cost of providing such 
Improvements, if ADFORCE does not then license the Technology to Third 
Parties.

         (d)  Provided the license becomes effective per Section 2.1(a) above, 
at NETSCAPE's request, ADFORCE shall identify to NETSCAPE, and provide 
NETSCAPE reasonable information and assistance in furtherance of NETSCAPE's 
efforts to acquire, at NETSCAPE's own expense, commercially available Third 
Party software licensed to ADFORCE for use in connection with the Technology 
and not sublicensed to NETSCAPE under Section 2.1(a) or (b) above.

                                   ARTICLE 4
                          TECHNICAL SUPPORT SERVICES

    4.1  SCOPE OF SERVICES.

         (a)  Provided the license becomes effective per Section 2.1(a) 
above, during the term of this Agreement ADFORCE shall provide to NETSCAPE, at


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NETSCAPE's written request, reasonable technical training, support, 
documentation and assistance relating to the interactive content (including 
interactive advertisement) serving, trafficking, targeting and related 
functions of the Technology (collectively, "Technical Support Services"). 
The Technical Support Services shall, at a minimum, enable NETSCAPE, without 
the aid of ADFORCE or any other Person, to develop, enhance and maintain the 
Technology (including the source code for the Software) for use by NETSCAPE 
to the same extent as ADFORCE.

          (b)  Commencing no later than forty-five (45) days after the 
Deployment Date, the Technical Support Services, if required hereunder, shall 
include, without limitation: (i) the regular provision by ADFORCE of 
qualified Personnel able to resolve problems in the operation of the 
Technology on-site at NETSCAPE's data centers in Silicon Valley; and (ii) the 
provision by ADFORCE of telephone access twenty-four (24) hours a day, seven 
(7) days a week, to qualified Personnel able to resolve problems in the 
operation of the Technology, via a designated telephone support number.

     4.2  FEES FOR TECHNICAL SERVICES SUPPORT.

          (a)  Subject to subsection 4.2(b) below, provided that at the time 
any Technical Support Services are requested by NETSCAPE or are to be 
performed by ADFORCE hereunder, NETSCAPE is in compliance with all of its 
material obligations under a validly executed Demographic Data Agreement and 
does not Materially Limit or Prohibit the use by ADFORCE of Demographic Data, 
ADFORCE shall provide the Technical Support Services requested by NETSCAPE 
for no additional consideration other than reimbursement of the Fully 
Burdened Costs of the provision by ADFORCE Personnel of such Technical 
Support Services.

          (b)  If, at any time prior to July 15, 1999 any Technical Support 
Services are requested to be performed by ADFORCE hereunder and (i) the 
parties have not executed a Demographic Data Agreement, or (ii) the 
Implementation Date has not yet occurred under a validly executed Demographic 
Data Agreement, then NETSCAPE shall pay to ADFORCE the Fully Burdened Costs 
of the provision by ADFORCE Personnel of such Technical Support Services plus 
twenty-five percent (25%) of such costs. If, at any time on or after July 15, 
1999 any Technical Support Services are required to be performed by ADFORCE 
hereunder and (i) the parties have not executed a Demographic Data Agreement, 
or (ii) the Implementation Date has not yet occurred under a validly executed 
Demographic Data Agreement, then NETSCAPE shall pay to ADFORCE the Fully 
Burdened Costs of the provision by ADFORCE Personnel of such Technical 
Support Services plus forty percent (40%) of such costs.

          (c)  If, following the occurrence of the Implementation Date under 
a validly executed Demographic Data Agreement, at the time any Technical 
Support Services are requested to be performed by ADFORCE hereunder, NETSCAPE 
is not in compliance with all of its material obligations under the 
Demographic Data Agreement or Materially Limits or Prohibits the use by 
ADFORCE of Demographic Data, then


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NETSCAPE shall pay to ADFORCE the Fully Burdened Costs of the provision by 
ADFORCE Personnel of such Technical Support Services plus twenty-five percent 
(25%) of such costs.

     4.3  WARRANTY.  If the Technology or Services as described in Exhibit A 
fail to conform to or perform in accordance with the technical or user 
documentation provided by ADFORCE (other than as a result of operator error, 
accident, or misuse or alteration of the Technology by a Person not under 
ADFORCE's direction or control), or in the event of a breach of the 
warranties set forth in Section 10.2(e) or 10.2(f) below, then ADFORCE, at 
its expense and without any payment by NETSCAPE for Technical Support or 
other Services, shall use commercially reasonable efforts to cure such 
failure or breach as soon as practicable, but in any event:

          (a)  For a "critical" failure or breach, such as the Technology, or 
               other software, hardware or other technology with which the 
               Technology is interfacing or integrating, ceasing to execute a 
               function that NETSCAPE reasonably deems critical to its 
               business, ADFORCE shall provide at least a temporary 
               workaround or fix within two (2) hours of receiving notice of 
               such failure or breach and shall cure such failure or breach 
               within three (3) business days of receiving notice of such 
               failure or breach; and

          (b)  For any other failure or breach that is not a "critical" 
               problem, ADFORCE shall provide at least a temporary workaround 
               or fix within three (3) business days of receiving notice of 
               such failure or breach and shall cure such failure or breach 
               within fifteen (15) days after receiving notice of such 
               failure or breach.

Without limiting the generality of the foregoing, ADFORCE agrees, by way of 
example, that it shall not be unreasonable for NETSCAPE to deem a failure or 
breach "critical to its business" as provided in subpart (a) above if such 
failure or breach results or would result in the breach or nonperformance by 
NETSCAPE of any obligation to any advertiser on the NETSCAPE Network.

                                  ARTICLE 5
                            DEVELOPMENT SERVICES

          5.1   SCOPE OF SERVICES.  At NETSCAPE's written request, ADFORCE 
shall undertake the reasonable development of Improvements as necessary to 
customize the interactive content (including interactive advertisement) 
serving, trafficking, targeting and related functions of the Technology to 
meet NETSCAPE's needs (collectively, "Development Services"). Notwithstanding 
the foregoing, NETSCAPE shall have no obligation to request or to use 
Development Services of ADFORCE and may undertake


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similar work itself or through independent contractors other than ADFORCE, 
subject to the provisions of Section 2.3 above.

          5.2  FEES FOR DEVELOPMENT SERVICES.

               (a)  Provided that, at the time any Development Services are 
requested to be performed by ADFORCE hereunder, NETSCAPE is in compliance 
with all of its material obligations under a validly executed Demographic 
Data Agreement and does not Materially Limit or Prohibit the use by ADFORCE 
of Demographic Data, ADFORCE shall provide the Development Services requested 
by NETSCAPE for no additional consideration other than reimbursement of the 
Fully Burdened Costs of the provision by ADFORCE Personnel of such 
Development Services.

               (b)  If, at any time prior to July 15, 1999 any Development 
Services are requested to be performed by ADFORCE hereunder and (i) the 
parties have not executed a Demographic Data Agreement, or (ii) the 
Implementation Date has not yet occurred under a validly executed Demographic 
Data Agreement, then NETSCAPE shall pay to ADFORCE the Fully Burdened Costs 
of the provision by ADFORCE Personnel of such Development Services plus 
twenty-five percent (25%) of such costs. If, at any time on or after July 15, 
1999 any Development Services are required to be performed by ADFORCE 
hereunder and (i) the parties have not executed a Demographic Data Agreement, 
or (ii) the Implementation Date has not yet occurred under a validly executed 
Demographic Data Agreement, then NETSCAPE shall pay to ADFORCE the Fully 
Burdened Costs of the provision by ADFORCE Personnel of such Development 
Services plus forty percent (40%) of such costs.

               (c)  If, following the occurrence of the Implementation Date 
under a validly executed Demographic Data Agreement, at the time any 
Development Services ARE requested to be performed by ADFORCE, NETSCAPE is 
not in compliance with all of its material obligations under the Demographic 
Data Agreement or Materially Limits or Prohibits the use by ADFORCE of 
Demographic Data, then NETSCAPE shall pay to ADFORCE the Fully Burdened Costs 
of the provision by ADFORCE Personnel of such Development Services plus 
twenty-five percent (25%) of such costs.

          5.3  ORIGINAL WORK.  Any Work Products either shall be the original 
work of ADFORCE and its Personnel or shall be items licensed by Third Parties 
that ADFORCE has the right to provide to NETSCAPE and that ADFORCE identifies 
as such to NETSCAPE in writing. ADFORCE shall not disclose to NETSCAPE, or 
induce NETSCAPE to use, the trade secrets or other confidential information 
of any Third Parties, except to the extent that the Technology includes 
Software licensed from Third Parties which ADFORCE has the right to provide 
to NETSCAPE.

          5.4  WORK FOR HIRE.


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          (a)  The Parties intend that each Work Product that is a work of 
authorship shall be deemed a "work made for hire" within the meaning of the 
copyright laws of the United States and any similar laws of other 
jurisdictions. To the extent, if any, that ADFORCE or its Personnel have 
rights in any Work Product notwithstanding the foregoing, including because a 
Work Product does not qualify as a "work made for hire," ADFORCE hereby 
irrevocably assigns to NETSCAPE, and agrees that NETSCAPE shall be the sole 
and exclusive owner of, all right, title and interest in and to the Work 
Product, including all patent, copyright, trade secret and other proprietary 
rights therein that may be secured in any place under laws now or hereafter 
in effect.

          (b)  To extent that ADFORCE provides Development Services in support 
of any modification of the Technology, NETSCAPE hereby grants to ADFORCE a 
perpetual, worldwide, nonexclusive, nontransferable license to use, 
reproduce, adapt, transmit, perform and display such modification in 
connection with the provision of such Development Services and for no other 
purpose without NETSCAPE's prior written approval. In the event that ADFORCE 
desires to integrate such modification in the Technology and obtains 
NETSCAPE's approval thereto, then ADFORCE shall reimburse NETSCAPE for any 
payment made by NETSCAPE for such Development Services, or waive such payment 
by NETSCAPE, in consideration for the grant of such license to ADFORCE. 
ADFORCE may exercise its rights under the foregoing license through Personnel 
who are obligated by written agreement to maintain such modification in 
confidence and restrict their use of such modification pursuant to terms 
comparable to those set forth in Article 13.

          (c)  ADFORCE shall have valid and enforceable written agreements 
with all of its Personnel providing Development Services hereunder containing 
confidentiality and nondisclosure obligations comparable in scope to those 
set forth in Article 13 and giving ADFORCE all rights and authority necessary 
to effectuate the provisions of this Section 5.4.  ADFORCE shall provide 
copies of these agreements to NETSCAPE upon NETSCAPE's request.

          (d)  To the extent that ADFORCE delivers to NETSCAPE any 
Improvements, designs, drawings, specifications, documentation, computer 
software, reports, training materials, inventions, discoveries and other 
items that are not Work Products, such items shall be deemed included in the 
Technology and licensed pursuant to Section 2.1 above.

      5.5  CHANGE MANAGEMENT PROCESS.  Notwithstanding the foregoing 
provisions of this Article 5, if NETSCAPE implements a version of the 
Technology containing any modification to the source code for the Software 
that adds a substantially new feature or function to the version of the 
Technology used by ADFORCE (in contrast to merely correcting what are 
colloquially known as "bugs" in such Software or making any other minor 
modification to an existing feature or function) then: (a) ADFORCE shall not 
be obligated to provide Development Services or Technical Support Services 
for such Improvement; and (b) in the event that NETSCAPE does not request, or 
ADFORCE does


                                      12




                                                                   CONFIDENTIAL

not agree to provide, such Services, the Parties shall work together to 
devise a change management process to facilitate the technical support and 
maintenance of NETSCAPE's version of the Technology containing such 
Improvement.

                                    ARTICLE 6
                               AD SERVING SERVICES

      6.1  SCOPE OF SERVICES.  From the Effective Date through November 22, 
1999 (the "initial Ad Serving Services Term"), ADFORCE shall provide to 
NETSCAPE interactive advertisement serving, trafficking, targeting and 
related services (collectively, "Ad Serving Services") for NETSCAPE 
Netcenter, and such other parts of the NETSCAPE Network as NETSCAPE shall 
reasonably request. The terms for such Ad Serving Services shall be as attached 
hereto in Exhibits A and B and as set forth below.

      6.2  FEES FOR AD SERVING SERVICES.

           (a)  Provided that, at the time any Ad Serving Services are to be 
performed by ADFORCE, NETSCAPE is in compliance with all of its material 
obligations under a validly executed Demographic Data Agreement and does not 
Materially Limit or Prohibit the use by ADFORCE of Demographic Data, ADFORCE 
shall provide the Ad Serving Services requested by NETSCAPE for no additional 
consideration other than reimbursement of the Fully Burdened Costs of the 
provision by ADFORCE Personnel of such Ad Serving Services; provided, 
however, that in the event that ADFORCE agrees to provide any Ad Serving 
Services to any Third Party that is similarly situated to NETSCAPE at a rate
that is more favorable to such Third Party than the consideration payable
by NETSCAPE under this subpart (a), then ADFORCE shall provide the Ad Serving
Services requested by NETSCAPE at such Third Party's rate.

          (b)  If, at any time prior to July 15, 1999 any Ad Serving Services 
are required to be performed by ADFORCE hereunder and (i) the parties have 
not executed a Demographic Data Agreement, or (ii) the Implementation Date 
has not yet occurred under a validly executed Demographic Data Agreement, 
then NETSCAPE shall pay to ADFORCE the Fully Burdened Costs of the provision 
by ADFORCE Personnel of such Ad Serving Services plus twenty-five percent 
(25%) of such costs. If, at any time on or after July 15, 1999 any Ad Serving 
Services are required to be performed by ADFORCE hereunder and (i) the 
parties have not executed a Demographic Data Agreement, or (ii) the 
Implementation Date has not yet occurred under a validly executed Demographic 
Data Agreement, then NETSCAPE shall pay to ADFORCE the Fully Burdened Costs 
of the provision by ADFORCE Personnel of such Ad Serving Services plus forty 
percent (40%) of such costs.

          (c)  If, following the occurrence of the Implementation Date under 
a validly executed Demographic Data Agreement, at the time any Ad Serving 
Services are to be performed by ADFORCE, NETSCAPE is not in compliance with 
all of its material


                                      13



                                                                  CONFIDENTIAL

obligations under the Demographic Data Agreement or Materially Limits or
Prohibits the use by ADFORCE of Demographic Data, then NETSCAPE shall pay to
ADFORCE the Fully Burdened Costs of the provision by ADFORCE Personnel of such
Ad Serving Services plus twenty-five percent (25%) of such costs.

     6.3  REIMBURSEMENT FOR AD SERVING SERVICES.  In addition to the fees for Ad
Serving Services provided for in Section 6.2 above, NETSCAPE shall reimburse the
following costs incurred by ADFORCE in the provision of Ad Serving Services
requested by NETSCAPE for the purposes set forth in Section 6.1 above, and, at
NETSCAPE'S option, NETSCAPE shall provide financing for such costs on mutually
agreeable terms, but in any event on terms no less favorable than such terms are
commercially available to entities similarly situated.

          (a)  Reimbursement for ADFORCE's incremental costs for any
               modification of the AdForce System required to meet NETSCAPE's
               needs for the provision of Ad Serving Services (other than
               capitalized costs, which if financed at the time such costs are
               incurred, shall be reimbursed at the time such costs are
               amortized), excluding any modifications required to scale the
               Software or other Technology to meet NETSCAPE's needs;

          (b)  Reimbursement for ADFORCE'S incremental costs for any additional
               equipment that ADFORCE must purchase or lease solely to meet
               NETSCAPE's needs for the provision of Ad Serving Services for so
               long as necessary to meet NETSCAPE's needs; and

          (c)  Reimbursement for any additional incremental bandwith costs
               incurred by ADFORCE solely in connection with the provision of Ad
               Serving Services to NETSCAPE.

     6.4  APPLICATION OF FEE METHODOLOGY.  Attached hereto as Exhibit B is the
Parties' agreed upon pricing for the Ad Serving Services for the Initial Ad
Services Term per the provisions of Sections 6.2 and 6.3 above.

                                      ARTICLE 7
                              NETSCAPE MARKETING EFFORTS

     7.1  NETSCAPE MARKETING EFFORTS.  NETSCAPE shall use commercially
reasonable efforts to encourage NETSCAPE Partners (but NETSCAPE shall not be
obligated to actively solicit NETSCAPE Partners) to use the AdForce System for
the serving and management of Internet advertisements, subject to agreement
between ADFORCE and such NETSCAPE Partners on the terms and conditions of such
use.

     7.2  COMMISSIONS.  If, as a result of marketing efforts by NETSCAPE, a
NETSCAPE Partner or any other Person enters into an agreement with ADFORCE to


                                          14


                                                                  CONFIDENTIAL

utilize the AdForce System, then, provided that, as of the time that ADFORCE
enters into such agreement with such NETSCAPE Partner or other Person, the
Parties have executed a Demographic Data Agreement, NETSCAPE is in compliance
with all of its material obligations thereunder and does not Materially Limit or
Prohibit the use by ADFORCE of Demographic Data, ADFORCE shall pay to NETSCAPE
on a quarterly basis the following commissions on the gross amount of the
consideration charged by ADFORCE to such NETSCAPE Partner or other Person for
use of the ADFORCE AdForce System:

          (a)  For the first year of such agreement, the greater of 4% and the
               highest percentage commission granted by ADFORCE at such time to
               any employee or agent of ADFORCE or to any Third Party for
               similar marketing or sales efforts; and

          (b)  For each succeeding year of such agreement, the greater of 2% and
               the highest percentage commission granted by ADFORCE at such
               time to any employee or agent of ADFORCE or to any Third Party
               for similar marketing or sales efforts.

     7.3  COMMISSION SHARING.  Notwithstanding the provisions of Section 7.2
above, if NETSCAPE and any employee or agent of ADFORCE or any other Third Party
claims commissions with respect to the same Person (and such Person has not
entered into an agreement with ADFORCE solely as a result of NETSCAPE marketing
efforts), ADFORCE shall not be required to pay total commissions to NETSCAPE and
such Third Party in excess of the amount specified in Section 7.2 and ADFORCE
may apportion the applicable commission specified in Section 7.2 between
NETSCAPE and the Third Party in such manner as ADFORCE determines in good faith
to be equitable.


                                      ARTICLE 8

                                INTENTIONALLY OMITTED


                                      ARTICLE 9
                                  PAYMENT PROVISIONS

     9.1  PAYMENT PROCEDURES.

          (a)  Unless otherwise agreed to in writing by the Parties, all
payments due by NETSCAPE for the provision of Services by ADFORCE hereunder
shall be due and payable thirty (30) days after the receipt by NETSCAPE of a
proper invoice therefor from ADFORCE, which invoice shall include such detail
and supporting documentation as NETSCAPE may reasonably request. Notwithstanding
the foregoing, NETSCAPE agrees to pay to ADFORCE the amount set forth in Exhibit
B within forty-five (45) days from the


                                          15


                                                                  CONFIDENTIAL

Effective Date, which represents a prepayment of the estimated fees for Ad
Serving Services for the Initial Ad Serving Services Term ("Prepayment").

The Prepayment shall be credited against the Ad Serving Service fees accruing 
under this Agreement during the Initial Term, which ADFORCE shall calculate 
monthly in accordance with Exhibits B and C and submit to NETSCAPE for its 
review and approval.  For each $1.00 of fees due up to the Prepayment, $1.00 
shall be credited against the Prepayment.  Upon exhaustion of the Prepayment, 
ADFORCE shall invoice NETSCAPE monthly in arrears for the Ad Serving Services 
provided to NETSCAPE based on the rates for such Services as set forth in 
Exhibit B.

Each month and coincident with the impression forecast NETSCAPE will provide per
Exhibit A, Section 1(C), the Parties will review the estimates that form the
basis of the prepayment described in Exhibit B and discuss any adjustments to
the forecast, principally the impression forecast and the headcount forecast.
Unless the parties mutually agree otherwise, if the changes to the forecasts in
Exhibit C are estimated to have a sum total impact greater than 10% on the fees
(as measured against the prior adjustment to fees), the Parties will make a
mutually agreed to adjustment in the fees going forward.

On or before August 1, 1999, the Parties will evaluate if there is a significant
change in the payment forecast for the remainder of the term.  If there is a
significant decline in the forecast (greater than 30%), ADFORCE will make an
adjusting refund at that time, including interest on the amount of the refund
equal to the lower of (i) the prime rate on August 1, 1999 or (ii) the maximum
amount permitted by law.

If Netscape opts to deploy ADFORCE's Banner Exchange technology to provide a
Banner Exchange to NETSCAPE Banner Exchange Partner sites outside of NETSCAPE
Netcenter or NETSCAPE Affiliates, NETSCAPE may do so solely on a "barter" basis
as described in the Banner Exchange definition above.  For ads served by
NETSCAPE to such external sites, NETSCAPE will make additional payments to
ADFORCE based on a CPM rate equal to 50% of NETSCAPE's imputed CPM at the end of
the Initial Term or a $0.04 CPM, whichever is higher, provided that the rate
shall never exceed the lowest CPM rate ADFORCE is offering other banner exchange
customers.  NETSCAPE shall make these payments for as long as it requests the
delivery of improvements to ADFORCE's Banner Exchange technology or a minimum of
two years after NETSCAPE first deploys ADFORCE's Banner Exchange technology,
whichever is greater.

          (b)  Unless otherwise agreed to in writing by the Parties:  (i) all 
payments due by ADFORCE under Article 7 in connection with ADFORCE's entrance 
into an agreement for use of the AdForce System with an NETSCAPE Partner or 
other Person as a result of NETSCAPE marketing efforts shall be paid to 
NETSCAPE within sixty (60) days after the end of the calendar quarter during 
which such agreement is entered into and within sixty (60) days after the end 
of each succeeding calendar quarter thereafter.

                                          16


                                                                  CONFIDENTIAL

          (c)  All payments due to the payee Party hereunder shall be paid to
the payee Party in U.S. Dollars by wire transfer, or by such other method
mutually agreed upon by the Parties, in each case at the expense of the payor
Party, for value no later than the due date thereof (with 24 hours advance
notice of each wire transfer) to such bank account or accounts as the payee
Party shall designate in writing within a reasonable period of time prior to
such due date.

     9.2  LATE PAYMENT.  Without limiting the payee Party's rights to pursue any
other remedies at law or in equity, if the payor Party fails to pay any payment
required under this Agreement thirty days after written notice of past due
amount, then the payor Party shall pay annually compounded interest on such
amount at an annual rate equal to the lower of (a) the highest rate permitted by
applicable law and (b) the lowest prime rate as published by The Wall Street 
Journal on or nearest to such due date plus three percent (3%), which interest
shall accrue from the date the payment not timely made became due until the date
such payment is paid in full.

     9.3  APPLICATION OF PAYMENTS.  Any payments received by the payee Party
shall be applied first to the satisfaction of the oldest of any unpaid, accrued
interest charges and, following payment of all such interest charges, to the
satisfaction of the oldest of any unpaid fees or other amounts due hereunder.

     9.4  TAXES.

          (a)  All payments required to be made by the payor Party under this
Agreement shall be made free and clear of, and without deduction for, any and
all taxes that are levied on the transfer of such payments to the payee Party.
If any withholding or deductions are required by applicable law, payments shall
be made such that, after such withholding or deductions, the net amount that the
payee Party received is equal to the amount due hereunder.  The payor Party
shall file any information or tax returns with respect to such taxes, and the
payor Party shall indemnify the payee Party from any interest or other payments,
fines or penalties relating to or resulting from any failure, delay or error of
the payor Party in doing so.

          (b)  ADFORCE shall be responsible for the payment of any and all
transfer, sales, use or similar taxes that are levied on or in connection with
the transfer of the Technology to NETSCAPE, including any Improvements.

     9.5  BOOKS AND RECORDS.  ADFORCE shall keep full, true and accurate books 
of account containing all particulars and reasonable supporting documentation, 
in connection with the provision of Services hereunder and the determination of
any amounts payable to NETSCAPE under Article 7.  All such books of account and
reasonable supporting documentation shall be located at the principal place of
business of ADFORCE and shall be open for inspection by NETSCAPE or any
independent certified public accountant retained by NETSCAPE, at a time mutually
acceptable to the Parties during normal business hours but no more frequently
than once each calendar year for three years


                                          17


                                                                  CONFIDENTIAL

following the end of the calendar year to which they pertain (and access shall
not be denied thereafter if reasonably available).  If such records are
insufficient or any such inspection discloses a discrepancy in favor of NETSCAPE
of five percent (5%) or more of the amounts actually due for any period, then,
in addition to any other rights and remedies available to NETSCAPE under this
Agreement, ADFORCE shall pay or refund to NETSCAPE the amount of such
discrepancy as well as the reasonable cost of such inspection promptly following
ADFORCE's receipt from NETSCAPE of the bill or invoice for such inspection.


                                      ARTICLE 10
                            REPRESENTATIONS AND WARRANTIES

     10.1 MUTUAL REPRESENTATIONS AND WARRANTIES.  Each Party represents and
warrants to the other Party that:

          (a)  Such Party has the full corporate right, power and authority to
               execute, deliver and perform this Agreement and to consummate the
               transactions contemplated hereby;

          (b)  The execution, delivery and performance of this Agreement and the
               consummation of the transactions contemplated hereby have been
               duly authorized by all necessary corporate action on the part of
               such Party;

          (c)  This Agreement has been duly executed and delivered by an
               authorized officer of such Party, and is a legal, valid and
               binding obligation of such Party enforceable against it in 
               accordance with its terms, except as enforcement may be limited
               by general principles of equity (regardless of whether such
               enforceability is considered in a proceeding at law or in equity)
               and the effect of applicable bankruptcy, insolvency, moratorium 
               and other similar laws of general application relating to or 
               affecting creditors' rights generally, including, without 
               limitation, the effect of statutory or other laws regarding 
               fraudulent conveyances and preferential transfers;

          (d)  Such Party's execution, delivery and performance of this
               Agreement shall not constitute a breach or default under any
               contract or agreement to which such Party is a party or by which
               it is bound or otherwise violate the rights of any Third Party;
               and

          (e)  No consent, approval or authorization of or from any governmental
               entity or any other Person not a Party to this Agreement, whether
               prescribed by law, regulation, contract or agreement, is required
               for such Party's execution, delivery and performance of this
               Agreement or consummation of the transactions contemplated
               hereby.


                                          18




                                                                  CONFIDENTIAL

     10.2  ADDITIONAL REPRESENTATIONS AND WARRANTIES OF ADFORCE. ADFORCE 
further represents and warrants to NETSCAPE that:

           (a)  WORKMANLIKE SERVICES. The Services shall be provided in a 
                workmanlike manner, in accordance with the standards of care 
                and diligence and the level of skill, knowledge and judgment 
                normally practiced by nationally-recognized information 
                technology services firms in performing services of a similar 
                nature;

           (b)  NONINFRINGEMENT.  The Technology does not, and any 
                Improvements provided by ADFORCE, any Work Products and 
                NETSCAPE's use of the Technology and Work Products as 
                authorized herein shall not, infringe any copyright, trade 
                secret or other proprietary rights (except patent rights) of 
                any Third Party or otherwise conflict with the rights of any 
                Third Party, and, to the best of ADFORCES's knowledge, the 
                Technology does not, and any Improvements provided by 
                ADFORCE, any Work Products and NETSCAPE's use of the 
                Technology and Work Products shall not, infringe any patent 
                of any Third Party;

           (c)  NO LITIGATION.  There is no action, suit, proceeding or 
                arbitration pending, and, to the best of ADFORCE's knowledge, 
                there is no action, suit, proceeding, arbitration or claim 
                threatened, concerning the Technology;

           (d)  NO LIENS OR ENCUMBRANCES.  The Technology is free from any 
                security interests and other liens and encumbrances of Third 
                Parties arising from the actions or inaction of ADFORCE;

           (e)  NO UNAUTHORIZED CODE.  The Technology does not, and any 
                Improvements provided by ADFORCE shall not, contain any back 
                door, time bomb, drop dead device, protect codes, data 
                destruct keys, or other software routine designed to disable 
                a computer program automatically with the passage of time or 
                under the control of any Person other than NETSCAPE. To the 
                best of ADFORCE's knowledge, the Technology does not, and any 
                Improvements provided by ADFORCE shall not, contain any 
                virus, Trojan horse, worm or other software routine designed 
                to permit unauthorized access or to disable, erase, modify, 
                deactivate or otherwise harm software, hardware or data; and 
                ADFORCE covenants that, prior to or at the time of the 
                delivery of any Technology (including any Improvement), 
                ADFORCE shall test the Technology using a current version of 
                a reputable "antivirus" program and remove any such 
                unauthorized codes; and


                                 19



                                                                  CONFIDENTIAL

           (f)  YEAR 2000 COMPLIANCE.  All Software and other operational 
                items included in the Technology shall: (i) properly execute 
                with all date data, whether from years in the same century or 
                different centuries, including by yielding correct results 
                in arithmetic operations, comparisons and sorting of date 
                fields and in leap year calculations; and (ii) not abnormally 
                cease to execute or return an error message due to 
                date-related processing.

     10.3  NO OTHER WARRANTIES.  THE EXPRESS WARRANTIES IN THIS AGREEMENT 
SHALL BE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

                               ARTICLE 11
                            INDEMNIFICATION

     11.1  INDEMNITY.  NETSCAPE shall not be liable to ADFORCE, any of its 
Affiliates or any other Person for, and ADFORCE shall indemnify and hold 
harmless NETSCAPE and all NETSCAPE Affiliates, and their respective 
directors, officers, employees and agents (collectively, the "NETSCAPE 
Indemnitees"), from and against any Losses incurred arising out of or 
resulting from: (a) any infringement of any patent, copyright, trade secret 
or other proprietary right by the Technology or any Work Product, except to 
the extent that such infringement arises solely from any Improvement 
developed by NETSCAPE, or by ADFORCE to NETSCAPE's specifications if ADFORCE 
could not reasonably have conformed to such specifications while avoiding the 
infringement; or (b) the presence of ADFORCE's employees or agents on the 
premises of NETSCAPE or an NETSCAPE Affiliate (except those Losses that 
result solely from the gross negligence or willful misconduct of NETSCAPE or 
a NETSCAPE Affiliate), including, but not limited to, Losses resulting from 
injuries to ADFORCE's Personnel and Losses resulting from injuries caused by 
ADFORCE's Personnel.

     11.2  PROCEDURE.  Any NETSCAPE Indemnitee shall notify ADFORCE promptly 
in writing of an indemnifiable claim or cause of action under Section 11.1 
above upon receiving notice or being informed of the existence thereof; 
provided, however, that failure to notify ADFORCE of an indemnifiable claim 
or cause of action shall not relieve ADFORCE of its obligation to provide 
indemnification hereunder, except to the extent that such failure prejudices 
ADFORCE's ability to defend or settle such claim or cause of action. ADFORCE 
shall assume, at its cost and expense, the sole defense of such claim or cause 
of action through counsel selected by ADFORCE and reasonably acceptable to 
NETSCAPE, except that in the case of a conflict of interest between ADFORCE 
and NETSCAPE, ADFORCE shall, at ADFORCE's cost and expense, provide separate 
counsel for NETSCAPE selected by NETSCAPE. ADFORCE shall maintain control of 
such defense, including any decision as to settlement; provided that, in the 
event that


                                    20



                                                                  CONFIDENTIAL

ADFORCE does not maintain control of such defense on a timely basis, then, 
without prejudice to any other rights and remedies available to NETSCAPE 
under this Agreement, NETSCAPE may take over such defense with counsel of its 
choosing, at ADFORCE's cost and expense. NETSCAPE may, at its option and 
expense, participate in ADFORCE's defense, and if NETSCAPE so participates, 
the Parties shall cooperate with one another in such defense. ADFORCE shall 
bear the total costs of any court award or any settlement of such claim or 
cause of action approved by ADFORCE and all other costs, fees and expenses 
related to the resolution thereof (including reasonable attorneys' fees, 
except for attorneys' fees for which NETSCAPE is responsible in the event 
that NETSCAPE participates in ADFORCE's defense of such claim or cause of 
action).

     11.3  ABATEMENT OF INFRINGEMENT.  If ADFORCE reasonably believes it 
necessary to do so to minimize its liability under Section 11.1 above, 
ADFORCE may, at its expense, procure the right for NETSCAPE to continue using 
the Technology or any Work Product, replace the Technology or any Work 
Product with a functionally equivalent noninfringing item, or modify the 
Technology or any Work Product so that it is functionally equivalent but 
noninfringing.

                            ARTICLE 12
                      LIMITATION ON LIABILITY

     NEITHER PARTY SHALL BE LIABLE TO THE OTHER PARTY HEREUNDER FOR ANY 
INDIRECT, INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES.

                            ARTICLE 13
                         CONFIDENTIALITY

     13.1 CONFIDENTIALITY OBLIGATION.  Each of NETSCAPE and ADFORCE (the 
"Receiving Party") shall keep, and shall cause their Affiliates to keep, 
strictly confidential any information disclosed by the other Party (the 
"Disclosing Party") or otherwise made available to the Receiving Party 
concerning the Technology or either Party's performance of this Agreement or 
otherwise concerning the business, operations, trade secrets or other 
proprietary information of the Disclosing Party (whether in written media or 
otherwise) ("Confidential Information"), using the same degree of care that 
it uses to protect its own confidential or proprietary information of a like 
nature but in no event less than a reasonable degree of care.  "Confidential 
Information" shall not include information: (a) which is or becomes generally 
available to the public other than as a result of disclosure thereof by the 
Receiving Party; (b) which is lawfully received by the Receiving Party on 
a nonconfidential basis from a Third Party that is not itself under any 
obligation of confidentiality or nondisclosure to the Disclosing Party or any 
other Person with respect to such information; (c) which is independently 
developed by the Receiving Party; or (d) which was in the Receiving Party's  
possession prior to receipt from the Disclosing Party. Each Party shall 
treat any Technology or Work Product owned by or assigned to the other Party 
as Confidential Information of such Party.


                                 21



                                                                  CONFIDENTIAL

     13.2  NONDISCLOSURE OF CONFIDENTIAL INFORMATION.  The Receiving Party 
shall use Confidential Information solely for the purposes of this Agreement 
and shall not disclose or disseminate any Confidential Information to any 
Person at any time, except for disclosure to its Affiliates and to those of 
its own and its Affiliates' directors, officers, employees, accountants, 
attorneys, advisers and agents whose duties reasonably require them to have 
access to such Confidential Information, provided that such directors, 
officers, employees, accountants, attorneys, advisers and agents are bound 
to maintain the confidentiality of such Confidential Information to the same 
extent as if they were Parties hereto.

     13.3  EXCEPTION.  The foregoing confidentiality and nondisclosure 
obligations shall not apply to Confidential Information: (a) incidentally 
retained in the memory of Persons to whom the Receiving Party is permitted 
to disclose Confidential Information, other than as the result of an 
intentional effort to commit Confidential Information to memory to circumvent 
the provisions of this Article 13; or (b) which is required to be publicly 
disclosed by law or by regulation; provided, however, that, in such event, 
the Receiving Party provides the Disclosing Party with prompt advance notice 
of such disclosure so that the Disclosing Party has the opportunity if it so 
desires to seek a protective order or other appropriate remedy.

     13.4  SURVIVAL.  The confidentiality and nondisclosure obligations of 
this Article 13 shall remain in effect for three years following the date 
hereof or two years following the termination of this Agreement, whichever is 
greater, except with respect to source code and related source code 
documentation, for which the obligations of this Article 13 shall survive for 
so long as the source code and documentation remain Confidential Information.

     13.5  SOURCE CODE PROTECTION.  The Receiving Party shall protect 
Confidential Information consisting of source code and related source code 
documentation from unauthorized use and disclosure to the same extent that it 
protects its own source code (but no less than to a reasonable degree).

     13.6  OTHER BUSINESS ACTIVITIES.

           (a)  The Disclosing Party agrees that the Receiving Party may 
currently or in the future acquire information, either independently 
developed or legally received from Third Parties, which may be similar to the 
Confidential Information. Nothing in this Agreement shall be construed as a 
representation that the Receiving Party does not or shall not have such 
independently developed or legally received information.

           (b)  Nothing in this Agreement shall be construed as a 
representation or agreement to restrict reassignment of the Receiving Party's 
employees, or in any manner to affect or limit either Party's present or 
future business activities of any nature, including business activities which 
could be competitive with the Disclosing Party.


                                    22



                                                                  CONFIDENTIAL

           (c)  Nothing in this Agreement shall be construed as a 
representation or agreement that the Receiving Party shall not develop or have 
developed for it products, concepts, systems or techniques contemplated by or 
embodied in the Confidential Information, provided that the Receiving Party 
does not violate any of its obligations under this Agreement in connection 
with such development.

                              ARTICLE 14
                         TERM AND TERMINATION

     14.1  TERM.

           14.1.1 TECHNOLOGY LICENSE TERM.  Provided the license grant to 
NETSCAPE pursuant to Section 2.1(a) becomes effective, this Agreement with 
respect to such Technology license grant and related provisions herein shall 
commence as of the Effective Date and, unless terminated in accordance with 
the provisions of Section 14.2 below, shall remain in full force and effect 
without expiration.

           14.1.2 TECHNOLOGY LICENSE GRANTED BY DEFAULT TERM.  If the license 
grant to NETSCAPE does not become effective pursuant to Section 2.1(a) but 
Netscape obtains access to ADFORCE's source and object code as a result of 
ADFORCE's default hereunder as described in such Section 2.1 (a), then this 
Agreement with respect to such license grant and related provisions herein 
shall commence as of the Effective Date and remain in full force and effect 
through the date NETSCAPE's one-year right to use said source and object code 
expires.

           14.1.3 AD SERVING SERVICES TERM.  The term of this Agreement with 
respect to the Ad Serving Services and related provisions herein shall 
commence as of the Effective Date and remain in full force and effect through 
November 22, 1999. If both Parties assent in writing prior to the expiration 
of this Agreement, this Agreement with respect to such Ad Serving Services 
will renew on the same terms and conditions for an additional one year period.

     14.2  TERMINATION.

           14.2.1  TERMINATION RIGHTS OF NETSCAPE.  NETSCAPE shall have the 
right to terminate this Agreement in the event of the breach by ADFORCE of, 
or the failure of ADFORCE to perform, any of its material obligations 
hereunder and the failure to remedy such breach or nonperformance with sixty 
(60) days following the receipt of written notice of such breach or 
nonperformance from NETSCAPE. Such termination shall be immediately effective 
upon the receipt by ADFORCE of written notice of termination from NETSCAPE. 
On expiration or termination of this Agreement for any reason, the parties 
agree to work in good faith to ensure a smooth transition of the Service and 
Technology (if applicable) to NETSCAPE within 60 days of such termination or 
expiration date.

                                  23




                                                                  CONFIDENTIAL

           14.2.2 TERMINATION RIGHTS OF ADFORCE. ADFORCE shall have the right 
to terminate this Agreement in the event of:

                (a)     The breach by NETSCAPE of, or the failure of NETSCAPE 
                        to perform, any of its material obligations under 
                        this Agreement (except for its obligations under 
                        Articles 3, 4, 5 and 6 above) and the failure to 
                        remedy such breach or nonperformance within sixty 
                        (60) days following the receipt of written notice of 
                        such breach or nonperformance from ADFORCE; or

                (b)     A "Data Agreement Material Breach" by NETSCAPE. For 
                        purposes of this Agreement, a "Data Agreement Material
                        Breach" means the breach by NETSCAPE of, or the 
                        failure of NETSCAPE to perform, any of its material 
                        obligations under the Demographic Data Agreement, the 
                        failure of NETSCAPE to remedy such breach or 
                        nonperformance within sixty (60) days following the 
                        receipt of written notice of such breach or 
                        nonperformance from ADFORCE, and, in the event that 
                        such breach or nonperformance is disputed by the 
                        Parties, the final determination of such breach or 
                        nonperformance by a court of competent jurisdiction 
                        from which no further appeal may be taken.

Such termination shall be immediately effective upon the receipt by NETSCAPE 
of written notice of termination from ADFORCE.

           14.2.3  ADFORCE RIGHT TO DISCONTINUE SERVICES. ADFORCE shall have 
the right to discontinue the provision of Services pursuant to Sections 3.2, 
4.1, 5.1 and 6.1 above for which it is entitled to reimbursement or other 
payment from NETSCAPE, but shall not have the right to terminate this 
Agreement or the licenses granted pursuant to Section 2.1(a) above, if 
effective, in the event of the material breach by NETSCAPE of its obligation 
hereunder to reimburse or pay ADFORCE for any Services and the failure to 
remedy such breach within sixty (60) days following the receipt of written 
notice of such breach from ADFORCE. Such discontinuation of Services shall be 
immediately effective upon the receipt by NETSCAPE of written notice of 
discontinuation from ADFORCE. On expiration or termination of this Agreement 
for any reason, the parties agree to work in good faith to ensure a smooth 
transition of the Service and Technology (if applicable) to NETSCAPE within 
60 days of such termination or expiration date.

     14.3  EFFECT OF TERMINATION. Provided the license grant to NETSCAPE 
under Section 2.1(a) becomes effective, and notwithstanding anything herein 
to the contrary, in the event of the termination of this Agreement other than 
upon the breach by NETSCAPE of any of its material obligations under Article 
2 or Article 13 and the failure to remedy

                                      24



                                                                  CONFIDENTIAL

such breach within the time period set forth in Section 14.2.2 above, 
NETSCAPE shall have the right, for a period of one year following 
termination, to continue to exercise all license rights granted to it under 
Section 2.1 above on all the same terms in effect pursuant to this Agreement 
immediately prior to termination and to retain any Confidential Information 
necessary or useful for the exercise of such rights. Notwithstanding anything 
herein to the contrary, ADFORCE shall in no event be entitled to enjoin or 
seek to enjoin any exercise by NETSCAPE of the rights set forth in this 
Section 14.3, and ADFORCE hereby expressly waives any right to injunctive or 
other equitable relief, whether based on statute, common law or otherwise, 
arising out of any alleged default by NETSCAPE that would adversely affect 
the exercise by NETSCAPE of its rights under this Section 14.3.

     14.4  RETURN OF CONFIDENTIAL INFORMATION. Within thirty (30) 
calendar days following the termination of this Agreement other than 
termination where Section 14.3 above would be applicable, each Party shall 
either deliver to the other Party, or destroy, all copies of any Confidential 
Information of the other Party embodied in a tangible medium that is in such 
Party's possession or under its control, and shall furnish to the other Party 
an affidavit signed by an officer of such Party certifying that, to the best 
of its knowledge, such delivery or destruction has been fully effected.

     14.5  SURVIVAL. All rights granted to and obligations undertaken by 
the Parties hereunder shall terminate immediately upon the termination of 
this Agreement, except for the rights and obligations provided for in 
Sections 14.3 and 14.4 above as well as the following rights and obligations, 
which shall survive according to their terms:

               (a)   The obligation of the payor Party to pay any and all 
                     payments accrued hereunder;

               (b)   The license to ADFORCE granted in Section 5.4;

               (c)   The right of NETSCAPE to inspect the books and records 
                     of ADFORCE to the extent provided in Section 9.5;

               (d)   The indemnification obligations of Article 11 and the 
                     limitation on liability of Article 12;

               (e)   The confidentiality and nondisclosure obligations of 
                     Article 13; and 

               (f)   The provisions of Sections 15.1, 15.7, 15.8, 15.10, 
                     15.19, and 15.20 below.

In addition, termination of this Agreement shall not affect the remedies of 
the Parties otherwise available at law or in equity in relation to any rights 
accrued under this Agreement prior to termination.

                                   ARTICLE 15
                                 MISCELLANEOUS

                                      25



                                                                  CONFIDENTIAL

     15.1  ELECTRONIC REPOSSESSION. In no event shall ADFORCE 
electronically repossess, de-install, deactivate or disable any Technology in 
the absence of a final, unappealable judgment of a court of competent 
jurisdiction that the license rights granted under Section 2.1 above have 
been validly terminated.

     15.2   PERIODIC DISCUSSIONS. Commencing within thirty (30) days 
following the execution of this Agreement and on a quarterly basis 
thereafter, NETSCAPE shall engage in discussions with ADFORCE concerning 
NETSCAPE's deployment of the Technology and shall endeavor to provide ADFORCE 
with non-binding, 180 day forecasts of the Services that NETSCAPE intends to 
request from ADFORCE hereunder. Within forty-five (45) days after the 
Deployment Date, the Parties shall execute a more detailed development, 
support and maintenance agreement with respect to ADFORCE's obligations to 
provide development, support and maintenance for the Technology, including, 
without limitation, ADFORCE's obligations for the delivery of Improvements 
and other Technology, ADFORCE's obligations to provide Development Services 
and Technical Services, and ADFORCE's obligations to cure any nonperformance 
or other failure with respect to the Technology.

     15.3   MUTUAL NON-SOLICITATION. For a period of one year following 
the date hereof, without the prior written approval of the other Party, 
neither Party or any of its Affiliates shall actively solicit for hire any 
Personnel of the other Party with responsibility for the development or 
maintenance of the Technology or Work Products or for the provision of 
interactive advertisement serving, trafficking, targeting or related 
services, excluding independent contractors that do not spend the majority of 
their time providing services to such Party. The foregoing mutual 
non-solicitation covenant shall terminate at any time in the event of the 
acquisition by a Third Party of more than fifty percent (50%) of the voting 
power of ADFORCE, the acquisition by a Third Party of all or substantially all 
of the assets of ADFORCE, or the consummation of a merger, consolidation or 
similar corporate transaction of ADFORCE with or into a Third Party where the 
voting securities of ADFORCE outstanding immediately prior to consummation of 
such transaction are converted into cash or securities possessing less than 
fifty percent (50%) of the voting power of the surviving entity. The 
obligations of the Parties under this Section 15.3 shall not survive the 
termination of this Agreement.

     15.4   FAILURE TO ASSERT RIGHTS IN BANKRUPTCY. NETSCAPE's failure to 
assert its rights to retain its benefits under this Agreement in accordance 
with 11 U.S.C. Section 365(n)(1)(B) shall not be construed as a termination 
of this Agreement by NETSCAPE under 11 U.S.C. Section 365(n)(1)(A).

     15.5   FURTHER ASSURANCES. Upon the request of either Party, the 
other Party shall sign and deliver any assignments or other necessary 
documents and otherwise assist the requesting Party to obtain, maintain, 
perfect or enforce any of the requesting Party's rights hereunder.

                                      26



                                                                  CONFIDENTIAL

     15.6   RELATIONSHIP OF THE PARTIES. Nothing in this Agreement is 
intended or will be deemed to constitute a partnership, agency or joint 
venture relationship between the Parties hereto.

     15.7   APPLICABLE LAW. This Agreement shall be governed by the laws 
of the State of California applicable to contracts made and to be performed 
entirely within such jurisdiction and without giving effect to the choice 
or conflict of laws rules or principles of the State of California or of any 
other jurisdiction.

     15.8   CONSENT TO JURISDICTION. Each of the Parties irrevocably 
submits to the exclusive jurisdiction of the courts of the State of California 
and of any United States federal court sitting in the State of California in 
any action or proceeding arising out of or relating to this Agreement, and 
irrevocably agrees that all claims in respect of such action or proceeding 
shall be heard and determined in any such California or United States federal 
court. Each Party further agrees that service of any process, summons, notice 
or document by registered mail to the address of such Party set forth in 
Section 15.10 below shall be effective service of process for any action or 
proceeding brought against such Party in any such court. Each Party hereby 
irrevocably and unconditionally waives any objection to the laying of venue 
of any action or proceeding arising out of or relating to this Agreement in 
any such court and further irrevocably and unconditionally waives and agrees 
not to plead or claim in any such court that any such action or proceeding 
brought in any such court has been brought in any inconvenient forum. Each 
Party further agrees that a final, nonappealable judgment in any such action 
or proceeding shall be conclusive and may be enforced in any other 
jurisdictions by suit on the judgment or in any other manner provided by law.

     15.9   COUNTERPARTS. This Agreement may be executed in any number of 
counterparts and may be executed by facsimile. All counterparts shall 
collectively constitute one and the same Agreement.

     15.10  NOTICES. In any case where any notice or other communication 
is required or permitted to be given hereunder, such notice or communication 
shall be in writing and deemed to have been duly given and delivered (a) if 
delivered in person, on the date of such delivery, (b) if sent by confirmed 
facsimile transmission (with answer back received), on the date of such 
facsimile transmission, or (c) if sent by overnight express or registered or 
certified mail (with return receipt requested), on the date of receipt of 
such mail, and shall be sent to the following address (or such other address 
as either Party may designate from time to time in writing):

         If to NETSCAPE:

            Netscape Communications Corporation
                501 East Middlefield Road
                Mountain View, CA 94043

                                      27



                Telephone:  (650)937-2669
                Telefax:    (650)937-5543
                Attention:  Mike Homer, Executive Vice President

            Copy to:

            Netscape Communications Corporation
                501 East Middlefield Road
                Mountain View, CA 94043
                Telephone:  (650)937-2764
                Telefax:    (650)528-4123
                Attention:  General Counsel

            If to ADFORCE:

                ADFORCE, Inc.
                10101 N. DeAnza Boulevard
                Suite 210
                Cupertino, CA 95014
                Telephone:  (408)873-3680
                Telefax:    (408)873-3690
                Attention:  Charles W. Berger
                            cc: General Counsel

            Copy to:

                Fenwick & West LLP
                Two Palo Alto Square
                Palo Alto, CA 94306
                Telephone:  (650)494-0600
                Telefax:    (650)494-1417
                Attention:  Gordon K. Davidson

     15.11  FORCE MAJEURE. If any circumstance beyond the reasonable 
control of either Party occurs which delays or renders impossible the 
performance of that Party's obligations under this Agreement on the dates 
herein provided, such obligation shall be postponed for such time as such 
performance necessarily has had to be suspended or delayed on account 
thereof, provided such Party shall notify the other Party in writing as soon 
as practicable, but in no event more than ten days after the occurrence of 
such force majeure. In such event, the Parties shall meet promptly to 
determine an equitable solution to the effects of any such event, provided 
that such Party who fails because of force majeure to perform its obligations 
hereunder shall upon the cessation of the force majeure take all reasonable 
steps within its power to resume with the least possible delay compliance 
with its obligations. Events of force majeure shall include, without 
limitation, war, revolution, invasion, insurrection, riots, mob violence, 
sabotage or other civil disorders, acts of God,

                                      28



                                                                  CONFIDENTIAL

limitations imposed by exchange control regulations or foreign investment 
regulations or similar regulations, laws, regulations or rules of any 
government or governmental agency, and any inordinate and unanticipated 
delays in the regulatory review or governmental approval process that are 
within the control of such government or governmental agency. In no event 
shall the failure or nonperformance of the Technology as described in Section 
4.3 above constitute an event of force majeure.

     15.12  BINDING EFFECT; ASSIGNMENT.  This Agreement may not be 
assigned, in whole or in part, by either Party without the prior written 
consent of the other Party, except that: (a) NETSCAPE may assign any of its 
rights or obligations hereunder to America Online, Inc. or a wholly-owned 
subsidiary of NETSCAPE without ADFORCES's consent; and (b) the rights and 
obligations of either Party under this Agreement may be assigned without the 
other Party's consent to a Third Party acquiring all or substantially all of 
the assets of the assigning Party or to the surviving entity upon the 
consummation of any merger, consolidation or similar corporate transaction of 
the assigning Party with or into a Third Party. Any attempted assignment by 
either Party without the consent of the other Party in any circumstances 
other than those described in the immediately preceding sentence shall be 
null and void. This Agreement shall inure to the benefit of and be binding 
upon each of the Parties hereto and their respective successors and permitted 
assigns.

     15.13  ENTIRE AGREEMENT.  The terms and conditions herein contained 
constitute the entire agreement between the Parties relating to the subject 
matter of this Agreement and shall supersede all previous communications 
between the Parties with respect to the subject matter of this Agreement, 
except for the Confidential Non-Disclosure Agreement between the Parties 
dated as of January 1, 1999, and attached hereto as Exhibit D, each of which 
shall survive according to their terms. Neither Party has entered into this 
Agreement in reliance upon any representation, warranty, covenant or 
undertaking of the other Party that is not set out or referred to in this 
Agreement.

     15.14  RECITALS.  The recitals set forth at the start of this 
Agreement and the terms and conditions incorporated in such recitals shall be 
deemed integral parts of this Agreement, and all references in this Agreement 
to this Agreement shall encompass such recitals and the terms and conditions 
incorporated in such recitals.

     15.15  AMENDMENT.  This Agreement may be varied, amended or extended 
only by the written agreement of the Parties through their duly authorized 
officers or representatives, specifically referring to this Agreement.

     15.16  SEVERABILITY.  In the event that any provision of this 
Agreement is held to be illegal, invalid or unenforceable in a final, 
unappealable order or judgment (each such provision, an "invalid 
provision"), then such provision shall be severed from this Agreement and 
shall be inoperative, and the Parties promptly shall negotiate in good faith 
a lawful, valid and enforceable provision that is as similar to the invalid 
provision as may

                                 29



                                                                  CONFIDENTIAL

be possible, while the remaining provisions of this Agreement shall remain 
binding on the Parties hereto.

     15.17  HEADINGS.  The descriptive headings of the several articles 
and sections of this Agreement are inserted for convenience only and do not 
constitute a part of this Agreement.

     15.18  NO WAIVER OF RIGHTS.  No failure or delay on the part of 
either Party in the exercise of any power or right hereunder shall operate as 
a waiver thereof. No single or partial exercise of any right or power 
hereunder shall operate as a waiver of such right or of any other right or 
power. The waiver by either Party of a breach of any provision of this 
Agreement shall not operate or be construed as a waiver of any other or 
subsequent breach hereunder.

     15.19  REMEDIES CUMULATIVE; SPECIFIC PERFORMANCE.  All rights and 
remedies granted to either Party under this Agreement are cumulative and in 
addition to, and not in lieu of, any other rights or remedies otherwise 
available to such Party at law or in equity. The Parties agree that any 
breach by either Party of, or failure of either Party to perform, any 
obligation under this Agreement shall constitute immediate and irreparable 
damage to the other Party which cannot be fully and adequately compensated in 
money damages and that, in the event of such breach or failure, the other 
Party shall be entitled to injunctive relief and specific performance in 
addition to any other remedies to which it may be entitled at law or in 
equity.

     15.20  CONFIDENTIALITY OF AGREEMENT.  Each Party shall maintain the 
confidentiality of this Agreement and all provisions of this Agreement and, 
without the prior consent of the other Party, neither Party shall make any 
press release or other public announcement of or otherwise disclose this 
Agreement or any of its provisions to any Third Party (a) other than to its 
Affiliates and to its own and its Affiliates' directors, officers, employees, 
attorneys and accountants, and to the lead underwriter engaged by ADFORCE in 
connection with any offering of securities of ADFORCE, whose duties 
reasonably require familiarity with this Agreement, provided that such 
Persons (including any such lead underwriter) are bound to maintain the 
confidentiality of this Agreement, and (b) except for such disclosure as may 
be required by applicable law or regulation, in which case the disclosing 
Party shall provide the other Party with prompt advance notice of such 
disclosure so that the other Party has the opportunity if it so desires to 
seek a protective order or other appropriate remedy; provided that, in 
connection with any offering of securities of ADFORCE, ADFORCE shall provide 
in advance to NETSCAPE for review the form and content of any disclosure of 
this Agreement or any of its provisions that may be required by applicable 
law or regulation and, to the extent consistent with its disclosure 
obligations under applicable law, include such modifications to such 
disclosure as may be reasonably requested by NETSCAPE (except that ADFORCE 
may file this Agreement as an exhibit to its registration statement if it 
would constitute a "material agreement" under applicable law or regulation 
and ADFORCE shall use its reasonable best efforts to obtain confidential 
treatment of the portions of this Agreement that meet the SEC qualifications

                                    30



                                                                  CONFIDENTIAL

for confidential treatment if so requested by NETSCAPE). The confidentiality 
obligations of this Section 15.20 would apply, inter alia, to any disclosure 
by ADFORCE of this Agreement or of any provisions of this Agreement to any 
customer or potential customer of ADFORCE and any such disclosure would 
constitute a breach of this Section 15.20. The Parties agree that any breach 
of the provisions of this Section 15.20 by either Party, including, without 
limitation, by any directors, officers or employees of such Party, would 
constitute a breach by such Party of a material obligation hereunder for 
which the other Party shall have the right, notwithstanding the provisions of 
Section 14.2 above, to immediately terminate this Agreement without allowance 
of any period to remedy such breach, such termination to be immediately 
effective upon the receipt by the breaching Party of written notice of 
termination from the nonbreaching Party.

     15.21  USAGE.  Wherever any provision of this Agreement uses the 
term "including" (or "includes"), such term shall be deemed to mean 
"including without limitation" and "including but not limited to" (or 
"includes without limitation" and "includes but is not limited to") 
regardless of whether the words "without limitation" or "but not limited to" 
actually follow the term "including" (or "includes").

     IN WITNESS WHEREOF, the Parties hereto have caused this Agreement to 
be executed by their duly authorized officers as of the date first above 
written.

                                 NETSCAPE COMMUNICATIONS CORPORATION

 REVIEWED BY                     By: /s/ Mike Homer
NETSCAPE LEGAL                      ---------------------------
                                     Mike Homer
INITIAL  /s/ [ILLEGIBLE] 3/10/99     Executive Vice President
        ------------------------


                                 IMGIS, INC.

                                 By: /s/ Charles W. Berger
                                     ------------------------------------
                                     Charles W. Berger
                                     Chairman and Chief Executive Officer


                                   31



                                                                  CONFIDENTIAL

                                 EXHIBIT A

                             AD SERVING SERVICES

1. ADFORCE AD SERVING SERVICES.

     A. ADFORCE SERVICE DEFINITION.  The AdForce service ("AdForce Service") 
is a proprietary Internet advertising administration system that will allow 
NETSCAPE to manage advertising on its Internet properties. As part of the 
AdForce Service, ADFORCE will provide NETSCAPE the ADFORCE "client" 
("Client"), which NETSCAPE will use to (i) generate ad tags, (ii) schedule 
advertising to run in the online environments in which NETSCAPE places those 
ad tags, and (iii) generate reports on such advertising. In addition, ADFORCE 
will maintain a centralized ADFORCE server complex from which ADFORCE will 
electronically deliver advertising scheduled by NETSCAPE to the online 
environments containing the ad tags placed by NETSCAPE. The delivery of 
"Impressions," defined as the transmission of advertisements by ADFORCE to an 
ADFORCE ad tag, will be verified by monthly third-party audits of the 
AdForce Service, conducted by the Audit Bureau of Verification Services, Inc. 
or another third party of comparable reputation chosen by ADFORCE. The 
AdForce Service includes the targeting features and a suite of standard 
reports available in the ADFORCE system listed below.

     B. THE ADFORCE SERVICE.  The AdForce Service includes the functionality 
described in Section 1.A. above and as described below, with telephone client 
services support from the hours of 6 a.m. to 6 p.m., Pacific Standard Time, 
Monday-Friday, excluding major holidays. ADFORCE will also maintain 24 x 7 
level technical service support via phone, cell phone or pager. In addition, 
ADFORCE will provide up to four (4) days of account management support on 
site at NETSCAPE each calendar month at no charge; unused days will not carry 
over to subsequent calendar months. NETSCAPE may select the days and must 
provide ADFORCE five (5) business days advance notice. Any additional days of 
on-site training or support will be at a cost of $1,000 per day. The twelve 
(12) days of monthly on-site account support to be provided by ADFORCE will 
not include training for major ADFORCE releases, which will be provided to 
NETSCAPE separately at no cost.

     C. CERTAIN NETSCAPE OBLIGATIONS.  NETSCAPE agrees to implement the ad 
tags per the ADFORCE User Guide and Help documentation, and to use the 
ADFORCE Client to schedule advertising it wishes ADFORCE to serve onto 
NETSCAPE's Web sites. NETSCAPE confirms its commitment to use the AdForce 
Service and Technology to serve not less than ninety percent (90%) of the ad 
Impressions NETSCAPE controls on its NETSCAPE Netcenter online property, as 
measured beginning April 15, 1999. However, if ADFORCE fails for any period 
of time to meet its obligations under Sections 3.2, 4.3, 5.1, or 10.2 of the 
Agreement or Section 7 of Exhibit A, then NETSCAPE may at its option reduce 
its percentage commitment to a level NETSCAPE deems necessary until such time 
as ADFORCE has come back into compliance. NETSCAPE agrees to provide ADFORCE 
monthly volume forecasts of Impressions to be delivered using the AdForce 
Service; these forecasts will be provided no later than three (3) days prior 
to the beginning of each calendar month. NETSCAPE shall indemnify and hold 
harmless ADFORCE from any liability and damages and costs (including 
reasonable costs and attorney's fees) arising out of or relating to 
advertising placed by NETSCAPE using the AdForce Service, including, without 
limitation, content, libel, invasion of privacy, and rights of publicity.


                                  32


                                                                  CONFIDENTIAL

2. OWNERSHIP OF CLIENT AND LIMITATIONS ON USE.  Subject to the terms and 
conditions of this Agreement, NETSCAPE may use the Client on its premises 
solely for purposes of using the AdForce Service. ADFORCE shall at all times 
have sole and exclusive ownership of all right, title and interest in and to 
such Client and the AdForce Service as a whole, any enhancements thereto 
(except as provided in Section 2 above) and in any materials and data ADFORCE 
provides to NETSCAPE. NETSCAPE may not copy, modify, alter, sell, distribute 
or sublicense the Client, or reverse assemble, reverse compile or otherwise 
attempt by any other method to create or derive the source programs of the 
AdForce Service or the Client, nor authorize or contract with third parties 
to do the same.

3. CONFIDENTIALITY. All passwords to ADFORCE, ADFORCE user guides, the 
ADFORCE Client, and the ADFORCE "help" documentation, whether on-line or in 
printed form, are confidential and proprietary to ADFORCE. All account 
information input into the AdForce Service by NETSCAPE or ADFORCE for 
campaigns running on NETSCAPE Web sites, such as advertiser contacts, costs 
and billing information, and any NETSCAPE campaign-specific reports generated 
by the AdForce Service are confidential to NETSCAPE.

4. ADFORCE SYSTEM DATA.  As set forth in Section 3 above, ADFORCE 
acknowledges the confidentiality of the account information input into the 
AdForce Service by NETSCAPE or ADFORCE for NETSCAPE campaigns and any 
NETSCAPE campaign-specific reports generated by the AdForce Service. However, 
during the course of delivering advertising to visitors to NETSCAPE's sites 
or to any other site of any other ADFORCE customer, ADFORCE will collect and 
maintain information necessary to target advertising on behalf of all its 
customers, including NETSCAPE. This information includes, but is not limited 
to the user's IP address, cookie, browser type and operating system, as well 
as the time, date and ad tag of the request. ADFORCE will provide NETSCAPE 
the ability to run any reports referenced on Exhibit A against such 
information, ADFORCE and NETSCAPE both own all right, title and interest in 
and to such information. Use of such information by either party shall at all 
times comply with NETSCAPE's privacy policy, set forth at 
http://home.netscape.com/legal_notices/privacy.html or at such other URL as 
NETSCAPE may designate from time to time. ADFORCE shall have full freedom of 
use of such information without need for accounting, however, such use shall 
not expand beyond ADFORCE's actual use of such information as of the 
Effective Date. Specifically, ADFORCE will provide to NETSCAPE on a weekly 
basis the detailed HTTP server logs pertaining to user accesses on Netcenter. 
The parties shall mutually agree to a procedure by which such logs will be 
provided to NETSCAPE. Other logs may be requested with reasonable notice by 
Netscape and such requests will not be unreasonably refused by ADFORCE. 
Request for logs not generally provided by ADFORCE shall be subject to the 
terms of Development Services as described in Article 5. All NETSCAPE requests 
for system data will be on a prospective basis.

5. ADFORCE SERVICE DESCRIPTION



               -------------------------------------------
                                        AdForce BASIC
               -------------------------------------------
                                     
               Campaign Management      Scheduling
               Features                 Delivery
                                        Inventory Forecast
                                        Reporting
                                        Targeting
               -------------------------------------------
               Auditing                 Free monthly audit
               -------------------------------------------




                                         33



                                                                  CONFIDENTIAL


ADFORCE Reporting

The following reports are currently available with all levels of the AdForce 
Service:




Network Reports                          Website Reports                          Advertiser Reports
- ----------------------------------------------------------------------------------------------------
                                                                            
Daily Campaign Details                   Activity by Advertiser                   Campaign On-line Summary
Daily Campaign Summary                   Activity by Area Code                    Summary by Area Code
Monthly Billing Report                   Activity by Browser                      Summary by Banner
Summary by Advertiser                    Activity by Content Unit                 Summary by Browser
Summary by Area Code                     Activity by Country                      Summary by Category
Summary by Browser                       Activity by Date                         Summary by Country
Summary by Category                      Activity by Domain                       Summary by Date
Summary by Country                       Activity by Keyword                      Summary by Domain
Summary by Date                          Activity by Hour                         Summary by Hour 
Summary by Domain                        Activity by Operating System             Summary by Operating System
Summary by Hour                          Activity by Pay Type                     Summary by Service Provider 
Summary by Operating System              Activity by Service Provider             Summary by SIC Code
Summary by Payment Type                  Activity by SIC Code                     Summary by Website
Summary by Service Provider              Website Revenue                          Campaign Summary
Summary by SIC Code                                                               Monthly Billing Report
Summary by Website
Website Revenue



NETSCAPE will have the right to receive all current and future reports that 
are part of the standard reports made available to ADFORCE customers. Fees 
for any additional reports added in the future and not included as part of the 
standard reports made available to ADFORCE customers will be charged 
according to the terms of Article 5.

6.  TARGETING CAPABILITIES.  The AdForce Service includes targeting on the 
following parameters, when ADFORCE databases allow the parameter to be 
resolved:

- -   BROWSER TYPE - Different campaigns can be delivered to visitors of 
    different browsers.
- -   OPERATING SYSTEM - Different campaigns can be delivered to visitors with 
    different operating systems.
- -   DOMAIN TYPE - Different campaigns can be delivered to visitors from 
    different domain types.
- -   SERVICE PROVIDER - Different campaigns can be delivered to visitors with 
    different ISPs.
- -   TELEPHONE AREA CODE - Different ads can be delivered to visitors in 
    different area codes.
- -   SIC CODE - Different ads can be delivered to visitors working for 
    companies with different SIC codes.
- -   COUNTRY - Different campaigns can be delivered to visitors from different 
    countries.
- -   FREQUENCY - An advertisement can be shown a specified number of times to 
    each visitor.
- -   SEQUENCE - A series of advertisements can be shown in sequence to a 
    visitor.
- -   KEYWORDS - Advertisements can be targeted on the basis of a search word 
    or phrase.
- -   SITE DATA - Ads can be targeted on the basis of a site's data (i.e. with 
    registered users).
- -   DAY/DATE/TIME OF DAY - Ads can be scheduled to run during specific times 
    and on specific days.
- -   CONTENT AREA - Ads can be targeted to a specific area of a site.

                                      34



                                                                  CONFIDENTIAL

7.  PERFORMANCE METRICS

The Parties will measure real-world performance using a standard vendor such 
as Keynote, Inverse Networks or another service mutually agreed upon. 
NETSCAPE will be liable for the cost of the auditing services, not to exceed 
$50,000. The ADFORCE system must provide:

A.  Average ad delivery availability: 99.98%, measured each calendar month, 
    with no scheduled downtime. This metric also includes tracking functions 
    such as impressions and click through counting. If the AdForce Service 
    fails to meet this target level of performance, in addition to the 
    response times referenced in Section 4.3, ADFORCE will provide NETSCAPE a 
    "make good" on any ads which did not serve during any downtime in excess 
    of the required availability metric (for example, if ad delivery is down 
    0.03% of a given calendar month, then AdForce's make good shall apply 
    only to the 0.01% excess over the required metric). Accordingly, AdForce 
    will serve free of charge a number of ads equal to twice the number of ads 
    not served during such excess downtime. Finally, failure by the AdForce 
    Service to meet this performance metric for any four consecutive months 
    shall, at NETSCAPE's option, constitute a breach of the Agreement.

B.  Administration system availability: 99.95%, less scheduled maintenance, 
    measured each calendar quarter, with no scheduled downtime during Pacific 
    Standard Time working hours (8 a.m.-6 p.m.). Maximum scheduled downtime in
    any given work week shall be 4 hours; measure also excludes monthly 
    rebuilding of summary tables, provided they are executed only during 
    weekend hours. Includes order entry/administration and reporting. Finally, 
    failure by the AdForce Service to meet this performance metric for any four
    consecutive months shall, at NETSCAPE's option, constitute a breach of the 
    Agreement.

C.  Single http-ad server delivery latency of no more than 2.5 seconds. This 
    requirement will not apply at times when the Keynote Business 40 Benchmark 
    Page latency is greater than three times its weekly average. Schedule for 
    regular weekly measurements to be mutually agreed upon.

D.  Multiple ad delivery (maximum 9 ad requests) latency of no more than 10 
    seconds. This requirement will not apply at times when the Keynote Business
    40 Benchmark Page latency is greater than three times its weekly average. 
    Schedule for regular weekly measurements to be mutually agreed upon.

                                      35


                                                                  CONFIDENTIAL


                                   EXHIBIT B


                          FEES AND PAYMENT SCHEDULE

The current estimated obligation by NETSCAPE for the Initial Ad Serving 
Services Term of the Agreement is:


              FOR THE QUARTER BEGINNING:     THE ESTIMATE IS:
                                          
              February 1, 1999               $  776,159
              May 1, 1999                    $  778,133
              August 1, 1999                 $  866,529
              November 1, 1999               $  261,550
                                             ----------
              TOTAL:                         $2,692,372


* The figure for the quarter beginning November 1, is a prorated amount based 
on the 22 days from November 1, 1999 until the end of the Initial Ad Serving 
Services Term.

NETSCAPE will pre-pay an amount equal to $2.7 million, per Section 9.1.

Based on NETSCAPE's current impression forecast, this converts to an imputed 
CPM rate as follows, and under no circumstances will NETSCAPE's CPM rate 
exceed ADFORCE's own audited allocated CPM cost for the same period (defined 
as ADFORCE's total cost of goods sold divided by ADFORCE's total 
impressions), unless NETSCAPE chooses to increase ADFORCE's headcount 
requirements:



              FOR THE QUARTER BEGINNING:     THE CPM ESTIMATE IS:
                                          
              February 1, 1999               $0.10
              May 1, 1999                    $0.10
              August 1, 1999                 $0.10
              November 1, 1999               $0.08


ADFORCE may use its audited allocation accounting methodology to bill 
NETSCAPE; however, this amount may not exceed the computation of direct 
obligations contained in Exhibit C, after updating Exhibit C for actual 
impressions, headcount and other calculations. Specifically, those updates 
will be made in an electronic version of Exhibit C, and the maximum 
obligation for any given quarter will be the sum of those calculations, which 
are described below.

1.  Actual impressions will be as measured and mutual agreed to by each party.

2.  Headcount:

- -   Estimates will be adjusted per Section 9.1. It is currently estimated 
    that there are 9 full-time-equivalents at ADFORCE working on the NETSCAPE 
    account. It is agreed that 6 of these headcount, covering operations and 
    account support, will not increase in number at any time. The three 
    remaining headcount will work on providing quality assurance for campaign 
    management, and this number could increase or decrease at NETSCAPE's 
    option, depending on how NETSCAPE organizes this work in the future.

- -   The formula for calculating headcount costs will be: [Number of headcount]
    multiplied by [$35,000] multiplied by [1.25 if before July 15, 1.40 if after
    July 15, 1999, or 1.0 if Section 6.2(a) controls]

                                      36


                                                                  CONFIDENTIAL


3.  Facilities costs will be calculated according to the following formula: 
    [Number of headcount in 1 above] multiplied by [$5,000] multiplied by 
    [1.25 if before July 15, 1.40 if after July 15, 1999, or 1.0 if 
    Section 6.2(a) controls]

4.  G&A will not change from Exhibit C, unless mutually agreed upon

5.  Bandwidth will not change from Exhibit C, unless mutually agreed upon

6.  Amortized capital, equipment and related costs will be based on Exhibit 
    C. Specifically, the formula for any given quarter in which NETSCAPE is 
    using the ADFORCE Ad Serving Service equals the sum of [the capital 
    depreciation for capital expenses in that same quarter] and [the capital 
    depreciation for capital expenses in any previous quarter in which NETSCAPE
    used the ADFORCE Ad Serving Service where the depreciation schedule has not
    expired].

    (a) The initial calculations for any three-month quarter are:

        (1)  Small System units purchased in quarter = [[Average NETSCAPE 
             impressions served by ADFORCE per day] divided by [1,000,000] 
             multiplied by [0.83] less [the sum of the total number of Small 
             System units purchased in previous quarters]

        (2)  Small System units required in quarter = [Average NETSCAPE 
             impressions served by ADFORCE per day] divided by [1,000,000]
             multiplied by [0.83]

        (3)  Cost of Small System purchased in quarter = [total small system 
             units purchased in the quarter] multiplied by [$25,000]

        (4)  PC units purchased in quarter = [Small System units purchased in 
             the quarter] divided by [1.0]

        (5)  Cost of PC's purchased in quarter = [PC units purchased in 
             quarter] multiplied by [$5,000]

        (6)  Square footage required for Infrastructure build-out in quarter 
             = [Small System units purchased in quarter] divided by [8] and 
             then multiplied by [6]

        (7)  Cost of Infrastructure build-out in quarter = [square footage 
             required for Infrastructure build-out in quarter] multiplied by 
             [$350]

    (b) Summary calculations are:

        (1) Capital expenses in the quarter = the sum of [5.a.3], [5.a.5]
            and [5.a.7] above in the same quarter

        (2) Depreciation for the capital expenses incurred in the quarter = 
            [5.b.1] divided by [8].

Not withstanding the foregoing, if less than a full quarter is completed the 
maximum amount due will be prorated accordingly.

Not withstanding the foregoing, changes that may impact these actual 
obligations include but are not limited to: NETSCAPE's assumption of 
activities and operations that are provided by ADFORCE in the current 
estimate, such as headcount, hardware, bandwidth, and facilities; and changes 
to the impression forecast which impact these costs.

Specifically, unless the parties mutually agree otherwise, if NETSCAPE were 
to assume any such activities and operations, NETSCAPE's obligation for the 
subsequent periods would be reduced by a ratable amount in the 
corresponding line item in Exhibit C, after adjusting for changes to Exhibit 
C described above.

                                      37


                                                                  CONFIDENTIAL


Unless the parties mutually agree otherwise, milestones regarding the timing 
and adjustment of payments will be made per Section 9.1 of the Agreement.

                                      38



                                                                  CONFIDENTIAL


                                   EXHIBIT C
                      MODEL AND FORMULA FOR ADJUSTMENTS


FINAL

ADFORCE COST ESTIMATE - WITH CORRECTION TO SURCHARGES



                                                             SURCHARGE            QUARTER BEGINNING ON...
                                                   -------------------------------------------------------------------------------
OPERATING EXPENSES:                                     Year 1        Year 2     2/1/99     5/1/99      8/1/99      11/1/99* Total
- ----------------------------------------------------------------------------------------------------------------------------------
Headcount (FTE)                                    up to 7/15/1999  7/16/99 on    9.0        9.0         9.0     1.00
                                                   ---------------------------    ---        ---         ---     ----
                                                                                                   
Headcount Expense                 $35,000 per/qtr             25%         40%   $393,750  $393,750  $441,000   $490,000  1,718,500
                                 -------------------------------------------------------------------------------------------------
G&A                                                            0%          0%   $ 10,000  $ 10,000  $ 10,000   $ 10,000
HW Depreciation                                                0%          0%   $226,199  $238,550  $262,529   $399,977
Bandwith                                                       0%          0%   $ 90,000  $ 90,000  $ 90,000   $  90,000
Facilities/IS Allocation          $5,000 per head             25%         40%   $ 56,250  $ 55,833  $ 63,000   $ 70,000
                                 -------------------------------------------------------------------------------------------------
Total Op Ex                                                                     $177,159  $788,155  $866,529   $1,067,977
- ----------------------------------------------------------------------------------------------------------------------------------
Total Operating Expenses                                                                                         
(prorated to term)                                                              $177,159  $788,155  $866,529   $261,550
- ----------------------------------------------------------------------------------------------------------------------------------


CAPITAL EXPENSE ESTIMATE - DYNAMICALLY ADJUSTED BY IMPRESSION FORECAST
- ----------------------------------------------------------------------------------------------------------------------------------
Large Servers                    $500,000 per unit                  
Capital Expense - Large Servers                                                  
Small Systems (Sun U2)           $25,000 per unit                                   70         4         7          43
   CUMULATIVE SYSTEMS                                                               70         4         7          43
Capital Expense - Small Servers                                             $1,755,723   $96,193  $186,158  $1,067,010    3,105,114
PC's                             $5,000 per unit                                     7         0         1           4
Capital Expense - PC's                                                      $   35,114   $ 1,924  $  3,723  $   21,341       62,102
Infrastructure Build-out         $350 per sq. ft.                                   53         3         6          32
Capital Expense - 
Infrastructure Build-out                                                    $   18,435   $ 1,010  $  1,955  $   11,304       32,594
- -----------------------------------------------------------------------------------------------------------------------------------
Total Capital Expense                                                       $1,009,275   $99,127  $191,835  $1,044,585    3,199,820
- -----------------------------------------------------------------------------------------------------------------------------------




NETSCAPE IMPRESSION ESTIMATE - LAST UPDATED ON FEBRUARY 19
- ----------------------------------------------------------------------------------------------------------------------------------
                                          QUARTER BEGINNING ON...
                                          ----------------------------------------------------------------------------------------
NOVEMBER QUARTER IS PRORATED TO TERM          2/1/99            5/1/99           8/1/99            11/1/99         Total
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                
Sito Impressions                           7,615,184,253     7,980,786,459   8,765,278,617    13,370,628,352   37,731,879,681
BannerX Impressions                                             51,621,717      74,559,805        97,335,486      223,516,990
- ----------------------------------------------------------------------------------------------------------------------------------
Total Impressions                          7,615,184,253     8,032,408,176   8,939,838,422    13,467,963,320   37,955,394,671
- ----------------------------------------------------------------------------------------------------------------------------------
Total Impressions Prorated to Term         7,615,184,253     8,032,408,176   8,939,838,422    13,467,963,320   37,955,394,671
- ----------------------------------------------------------------------------------------------------------------------------------





CPMs IMPLIED BY ADFORCE COST ESTIMATE
- ----------------------------------------------------------------------------------------------------------------------------------
                                                       SURCHARGE            QUARTER BEGINNING ON...
- ----------------------------------------------------------------------------------------------------------------------------------
OPERATING EXPENSES:                        up to 7/15/1999    7/16/99 on     2/1/99     5/1/99      8/1/99     11/1/99    Total
                                           ---------------------------------------------------------------------------------------
                                                                                                     
Headcount Expense                                  25%           40%        $0.05      $0.05      $0.05        $0.04      0.05
G&A                                                 0%            0%        $0.00      $0.00      $0.00        $0.00      0.00
HW Depreciation                                     0%            0%        $0.03      $0.03      $0.03        $0.03      0.03
Bandwith                                            0%            0%        $0.01      $0.01      $0.01        $0.01      0.01
Facilities/IS Allocation                           25%           40%        $0.01      $0.01      $0.01        $0.01      0.01
- ----------------------------------------------------------------------------------------------------------------------------------
Total Op Ex                                                                 $0.10      $0.10      $0.10        $0.08      0.09
                                                                                                                        
Total Operating Expenses                                                    $0.10      $0.10      $0.10        $0.08      0.09
- ----------------------------------------------------------------------------------------------------------------------------------


                                    39


                                                                CONFIDENTIAL


                             EXHIBIT D

             MUTUAL CONFIDENTIAL DISCLOSURE AGREEMENT

This Mutual Confidential Disclosure Agreement ("Agreement") is entered into 
between NETSCAPE Communications Corporation ("NETSCAPE") and IMGIS, INC, dba 
ADFORCE ("Company"), and is effective as of the date of execution by NETSCAPE 
("Effective Date"). Each party (the "Receiving Party") understands that the 
other party (the "Disclosing Party") may disclose certain Confidential 
Information (as defined in Section 1 below) under this Agreement. NETSCAPE 
and Company agree as follows:

1.  DEFINITION. "Confidential Information" shall mean (i) all information    
    disclosed in tangible form by the Disclosing Party and marked 
    "confidential" or "proprietary", and (ii) all information disclosed 
    orally or otherwise in intangible form by the Disclosing Party and 
    designated as confidential or proprietary at the time of disclosure. 
    Confidential Information may include, without limitation, computer 
    programs, code, algorithms, names and expertise of employees and 
    consultants, know-how, formulas, processes, ideas, inventions (whether 
    patentable or not), schematics and other technical, business, financial 
    and product development plans, forecasts, strategies and information.

2.  PURPOSE. The Receiving Party shall use the Confidential Information only 
    for the following purposes:

    a)  To evaluate whether to enter into a contemplated business transaction;
    and

    b) if NETSCAPE and Company enter into such contemplated business 
    transaction, to fulfill each party's commitments under the agreement for 
    such business transaction.

3.  CONFIDENTIALITY OBLIGATION. The Receiving Party agrees to protect the 
    Confidential Information by using the same degree of care, but not less 
    than a reasonable degree of care, to prevent the unauthorized use, 
    dissemination or publication of the Confidential Information as the 
    Receiving Party uses to protect its own confidential or proprietary 
    information of a like nature. The Receiving Party shall limit the use of 
    and access to the Disclosing Party's Confidential Information to the 
    Receiving Party's employees or independent contractors who need to know 
    such Confidential Information for the purposes set forth in Section 2 
    above and who have entered into binding obligations of confidentiality 
    substantially similar to the obligations set forth herein.

4.  TERM. The Receiving Party's obligations to protect Confidential 
    Information hereunder shall expire 3 years from the date of each such 
    disclosure of Confidential Information, except when such Confidential 
    Information disclosed by the Disclosing Party is source code, in which 
    case the Receiving Party's obligations to protect such Confidential 
    Information shall be perpetual.

5.  EXCLUSION. Confidential Information as defined in Section 1 above shall 
    not include Confidential Information that: (i) is or becomes a matter of 
    public knowledge through no fault of the Receiving Party; or (ii) was in 
    the Receiving Party's possession or known by it prior to receipt from the 
    Disclosing Party; or (iii) was rightfully disclosed to the Receiving 
    Party by another person without restriction; or (iv) is independently 
    developed by the Receiving Party without access to Disclosing Party's 
    Confidential Information. The Receiving Party may disclose Confidential 
    Information pursuant to any statutory or regulatory authority or court



                                                                  CONFIDENTIAL

    order, provided the Disclosing Party is given prompt written notice of 
    such requirement and the scope of such disclosure is limited to the 
    extent possible.

6.  INDEPENDENT DEVELOPMENT. The terms of confidentiality under this Agreement 
    shall not be construed to limit either party's right to independently 
    develop or acquire products without use of the other party's Confidential 
    Information. Further, Confidential Information as defined in Section 1 
    above shall not include the Residuals resulting from access to such 
    Confidential Information. The term "Residuals" means information in 
    intangible form which may be retained in the unaided memories of 
    Receiving Party's employees or independent contractors who have had 
    access to the information. An employee's or contractor's memory will be 
    considered to be unaided if the employee has not intentionally memorized 
    the Confidential Information for the purpose of retaining and 
    subsequently using or disclosing it. Neither party shall have any 
    obligation to limit or restrict the assignment of such persons or to pay 
    royalties for any work resulting from the use of Residuals. However, the 
    foregoing shall not be deemed to grant to either party a license under 
    the other party's copyrights or patents.

7.  RETURN OF CONFIDENTIAL INFORMATION. Upon written request by the Disclosing 
    Party at any time, the Receiving Party shall: (i) turn over to the 
    Disclosing Party all Confidential Information of the Disclosing Party, 
    all documents or media containing the Confidential Information, and any 
    and all copies or extracts thereof, or (ii) destroy the Confidential 
    Information, and any and all copies or extracts thereof, and provide the 
    Disclosing Party with written certification of such destruction signed 
    by an authorized representative of the Receiving Party.

8.  EQUITABLE RELIEF. The Receiving Party acknowledges and agrees that due to 
    the unique nature of the Disclosing Party's Confidential Information, 
    there may be no adequate remedy at law for any breach of its obligations. 
    The Receiving Party further acknowledges that any such breach may allow 
    the Receiving Party or third parties to unfairly compete with the 
    Disclosing Party resulting in irreparable harm to the Disclosing Party 
    and, therefore, that upon any such breach or any threat thereof, the 
    Disclosing Party shall be entitled to seek appropriate equitable relief 
    in addition to whatever remedies it may have at law. The Receiving Party 
    will notify the Disclosing Party in writing immediately upon the 
    occurrence of any such unauthorized release or other breach.

9.  INTELLECTUAL PROPERTY RIGHTS. Neither party acquires any intellectual 
    property rights or any other rights under this Agreement or through any 
    disclosure hereunder, except the limited right to use the Confidential 
    Information in accordance with this Agreement.
 
10. WARRANTY. THE CONFIDENTIAL INFORMATION IS DISCLOSED UNDER THIS AGREEMENT 
    IS DELIVERED "AS IS," AND ALL REPRESENTATIONS OR WARRANTIES, WHETHER 
    EXPRESS OR IMPLIED, INCLUDING WARRANTIES OR CONDITIONS FOR FITNESS FOR A 
    PARTICULAR PURPOSE, MERCHANTABILITY, TITLE AND NONINFRINGEMENT, ARE 
    HEREBY DISCLAIMED.

11. NETSCAPE SUBSIDIARIES. NETSCAPE's wholly owned subsidiaries, by signing 
    this Agreement on behalf of NETSCAPE and returning a fully executed 
    original or copy to the NETSCAPE Legal Department, shall be entitled to 
    disclose NETSCAPE's Confidential Information and receive Company's 
    Confidential Information on a need to know basis only on behalf of 
    NETSCAPE under this Agreement, provided such subsidiaries comply with the 
    terms and conditions of this Agreement and further provided such 
    disclosures or receipt of 

                                   2


                                                                  CONFIDENTIAL


    Confidential Information are governed by the terms and conditions of this 
    Agreement.

12. GENERAL. This Agreement supersedes all prior discussions and writings 
    with respect to the subject matter hereof, and constitutes the entire 
    agreement between the parties with respect to the subject matter hereof. 
    No waiver or modification of this Agreement will be binding upon either 
    party unless made in writing and signed by a duly authorized 
    representative of each party and no failure or delay in enforcing any 
    right will be deemed a waiver. The parties understand that nothing herein 
    requires either party to proceed with any proposed transaction or 
    relationship in connection with which Confidential Information may be 
    disclosed. In the event that any of the provisions of this Agreement 
    shall be held by a court or other tribunal of competent jurisdiction to 
    be unenforceable, the remaining portions hereof shall remain in full force 
    and effect. This Agreement shall be governed by the laws of the State of 
    California without regard to conflicts of laws provisions thereof and each 
    party submits to the jurisdiction and venue of any California State or 
    federal court generally serving the Santa Clara county area with respect to
    the subject matter of this Agreement. The headings to the Sections of 
    this Agreement are included merely for reference and shall not affect the 
    meaning of the language included herein. If applicable, this Agreement 
    may be executed in counterparts or by facsimile, each of which shall be 
    deemed an original, and all of which together shall constitute one and 
    the same agreement. This Agreement is written in the English language 
    only, which language shall be controlling in all respects. Les parties 
    aux presentes confirment leur volonte que cette convention de meme que 
    tous les documents y compris tout avis qui s`y rattache, soient rediges 
    en language anglaise (translation: "The parties confirm that this 
    Agreement and all related documentation is and will be in the English 
    language.").


NETSCAPE COMMUNICATIONS                  COMPANY
CORPORATION



By: /s/ Mike Homer                       By: /s/ Charles W. Berg
  ---------------------------------         --------------------------------- 


Name:  Mike Homer                        Name: Charles W. Berg
      ----------------------------            ----------------------------- 
         Print or Type                             Print or Type


Title: EVP, GM Netcenter                 Title: Chairman &  CEO
       --------------------------              ----------------------------- 


Date: January 1, 1999                    Date: January 1, 1999
     --------------------------               ----------------------------- 


Address:                                 Address:
501 East Middlefield Road                10101 N. DeAnza Boulevard, Ste. 210
Mountain View, CA 94043                  Cupertino, CA 95014


                                3