EXHIBIT 4.11

                              SUBSIDIARIES GUARANTY

            SUBSIDIARIES GUARANTY, dated as of March 6, 2002 (as amended,
modified or supplemented from time to time, this "Guaranty"), made by each of
the undersigned guarantors (each a "Guarantor," and together with any other
entity that becomes a guarantor hereunder pursuant to Section 26 hereof, the
"Guarantors"). Except as otherwise defined herein, capitalized terms used herein
and defined in the Credit Agreement (as defined below) shall be used herein as
therein defined.

                              W I T N E S S E T H:

            WHEREAS, infoUSA Inc. (the "Borrower"), the lenders from time to
time party thereto (the "Lenders"), and Bank of America, N.A., as Administrative
Agent (together with any successor administrative agent, the "Administrative
Agent"), have entered into a Credit Agreement, dated as of March 6, 2002 (as
amended, modified, or supplemented from time to time, the "Credit Agreement"),
providing for the making of Loans to, and the issuance of Letters of Credit for
the account of, the Borrower as contemplated therein (the Lenders, the
Collateral Agent, the Issuing Lender and the Administrative Agent are herein
called the "Lender Creditors");

            WHEREAS, the Borrower may at any time and from time to time enter
into one or more Interest Rate Protection Agreements or Other Hedging Agreements
with one or more Lenders or any affiliate thereof (each such Lender or
affiliate, even if the respective Lender subsequently ceases to be a Lender
under the Credit Agreement for any reason, together with such Lender's or
affiliate's successors and assigns, if any, collectively, the "Other Creditors,"
and together with the Lender Creditors, the "Secured Creditors");

            WHEREAS, each Guarantor is a direct or indirect Subsidiary of the
Borrower;

            WHEREAS, it is a condition to the making of Loans to, and the
issuance of Letters of Credit for the account of, the Borrower under the Credit
Agreement that each Guarantor shall have executed and delivered this Guaranty;
and

            WHEREAS, each Guarantor will obtain benefits from the incurrence of
Loans to, and the issuance of Letters of Credit for the account of, the Borrower
under the Credit Agreement and the entering into by the Borrower of Interest
Rate Protection Agreements or Other Hedging Agreements and, accordingly, desires
to execute this Guaranty in order to satisfy the conditions described in the
preceding paragraph;

            NOW, THEREFORE, in consideration of the foregoing and other benefits
accruing to each Guarantor, the receipt and sufficiency of which are hereby
acknowledged, each

            Guarantor hereby makes the following representations and warranties
to the Secured Creditors and hereby covenants and agrees with each Secured
Creditor as follows:

            1. Each Guarantor, jointly and severally, irrevocably, absolutely
and unconditionally guarantees: (i) to the Lender Creditors the full and prompt
payment when due (whether at the stated maturity, by acceleration or otherwise)
of (x) the principal of, premium, if any, and interest on the Notes issued by,
and the Loans made to, the Borrower under the Credit Agreement, and all
reimbursement obligations and Unpaid Drawings with respect to Letters of Credit
issued under the Credit Agreement and (y) all other obligations (including
obligations which, but for the automatic stay under Section 362(a) of the
Bankruptcy Code, would become due), liabilities and indebtedness owing by the
Borrower to the Lender Creditors under the Credit Agreement and any other Credit
Document to which the Borrower is a party (including, without limitation,
indemnities, Fees and interest thereon), whether now existing or hereafter
incurred under, arising out of or in connection with the Credit Agreement and
any such other Credit Document and the due performance and compliance by the
Borrower with all of the terms, conditions and agreements contained in all such
Credit Documents (all such principal, premium, interest, liabilities,
indebtedness and obligations being herein collectively called the "Credit
Document Obligations"); and (ii) to each Other Creditor the full and prompt
payment when due (whether at the stated maturity, by acceleration or otherwise)
of all obligations (including obligations which, but for the automatic stay
under Section 362(a) of the Bankruptcy Code, would become due), liabilities and
indebtedness owing by the Borrower under any Interest Rate Protection Agreement
and Other Hedging Agreement, whether now in existence or hereafter arising, and
the due performance and compliance by the Borrower with all of the terms,
conditions and agreements contained in the Interest Rate Protection Agreements
and Other Hedging Agreements (all such obligations, liabilities and indebtedness
being herein collectively called the "Other Obligations," and together with the
Credit Document Obligations, the "Guaranteed Obligations"). Each Guarantor
understands, agrees and confirms that the Secured Creditors may enforce this
Guaranty up to the full amount of the Guaranteed Obligations against such
Guarantor without proceeding against any other Guarantor, the Borrower, against
any security for the Guaranteed Obligations, or under any other guaranty
covering all or a portion of the Guaranteed Obligations.

            2. Additionally, each Guarantor, jointly and severally,
unconditionally, absolutely and irrevocably, guarantees the payment of any and
all Guaranteed Obligations whether or not due or payable by the Borrower upon
the occurrence in respect of the Borrower of any of the events specified in
Section 10.05 of the Credit Agreement, and unconditionally and irrevocably,
jointly and severally, promises to pay such Guaranteed Obligations to the
Secured Creditors, or order, on demand, in legal tender of the United States.
This Guaranty shall constitute a guaranty of payment, and not of collection.

            3. The liability of each Guarantor hereunder is primary, absolute
and unconditional and is exclusive and independent of any security for or other
guaranty of the indebtedness of the Borrower whether executed by such Guarantor,
any other


                                      -2-

Guarantor, any other guarantor or by any other party, and the liability of each
Guarantor hereunder shall not be affected or impaired by any circumstance or
occurrence whatsoever, including, without limitation: (a) any direction as to
application of payment by the Borrower or by any other party, (b) any other
continuing or other guaranty, undertaking or maximum liability of a guarantor or
of any other party as to the Guaranteed Obligations, (c) any payment on or in
reduction of any such other guaranty or undertaking, (d) any dissolution,
termination or increase, decrease or change in personnel by the Borrower, (e)
any payment made to any Secured Creditor on the indebtedness which any Secured
Creditor repays the Borrower pursuant to court order in any bankruptcy,
reorganization, arrangement, moratorium or other debtor relief proceeding, and
each Guarantor waives any right to the deferral or modification of its
obligations hereunder by reason of any such proceeding, (f) any action or
inaction by the Secured Creditors as contemplated in Section 6 hereof or (g) any
invalidity, irregularity or unenforceability of all or any part of the
Guaranteed Obligations or of any security therefor.

            4. The obligations of each Guarantor hereunder are independent of
the obligations of any other Guarantor, any other guarantor or the Borrower, and
a separate action or actions may be brought and prosecuted against each
Guarantor whether or not action is brought against any other Guarantor, any
other guarantor or the Borrower and whether or not any other Guarantor, any
other guarantor or the Borrower be joined in any such action or actions. Each
Guarantor waives, to the fullest extent permitted by law, the benefits of any
statute of limitations affecting its liability hereunder or the enforcement
thereof. Any payment by the Borrower or other circumstance which operates to
toll any statute of limitations as to the Borrower shall operate to toll the
statute of limitations as to each Guarantor.

            5. Each Guarantor hereby waives notice of acceptance of this
Guaranty and notice of any liability to which it may apply, and waives
promptness, diligence, presentment, demand of payment, protest, notice of
dishonor or nonpayment of any such liabilities, suit or taking of other action
by the Administrative Agent or any other Secured Creditor against, and any other
notice to, any party liable thereon (including such Guarantor, any other
Guarantor, any other guarantor or the Borrower)

            6. Any Secured Creditor may at any time and from time to time
without the consent of, or notice to, any Guarantor, without incurring
responsibility to such Guarantor, without impairing or releasing the obligations
of such Guarantor hereunder, upon or without any terms or conditions and in
whole or in part:

            (a)   change the manner, place or terms of payment of, and/or
                  change, increase or extend the time of payment of, renew or
                  alter, any of the Guaranteed Obligations (including any
                  increase or decrease in the rate of interest thereon), any
                  security therefor, or any liability incurred directly or
                  indirectly in respect thereof, and the guaranty herein made
                  shall apply to the Guaranteed Obligations as so changed,
                  extended, renewed or altered;


                                      -3-

            (b)   take and hold security for the payment of the Guaranteed
                  Obligations and sell, exchange, release, surrender, impair,
                  realize upon or otherwise deal with in any manner and in any
                  order any property by whomsoever at any time pledged or
                  mortgaged to secure, or howsoever securing, the Guaranteed
                  Obligations or any liabilities (including any of those
                  hereunder) incurred directly or indirectly in respect thereof
                  or hereof, and/or any offset thereagainst;

            (c)   exercise or refrain from exercising any rights against the
                  Borrower, any other Credit Party, any Subsidiary thereof or
                  otherwise act or refrain from acting;

            (d)   release or substitute any one or more endorsers, Guarantors,
                  other guarantors, the Borrower or other obligors;

            (e)   settle or compromise any of the Guaranteed Obligations, any
                  security therefor or any liability (including any of those
                  hereunder) incurred directly or indirectly in respect thereof
                  or hereof, and may subordinate the payment of all or any part
                  thereof to the payment of any liability (whether due or not)
                  of the Borrower to creditors of the Borrower other than the
                  Secured Creditors;

            (f)   apply any sums by whomsoever paid or howsoever realized to any
                  liability or liabilities of the Borrower to the Secured
                  Creditors regardless of what liabilities of the Borrower
                  remain unpaid;

            (g)   consent to or waive any breach of, or any act, omission or
                  default under, any of the Interest Rate Protection Agreements
                  or Other Hedging Agreements, the Credit Documents or any of
                  the instruments or agreements referred to therein, or
                  otherwise amend, modify or supplement any of the Interest Rate
                  Protection Agreements or Other Hedging Agreements, the Credit
                  Documents or any of such other instruments or agreements;

            (h)   act or fail to act in any manner referred to in this Guaranty
                  which may deprive such Guarantor of its right to subrogation
                  against the Borrower to recover full indemnity for any
                  payments made pursuant to this Guaranty; and/or

            (i)   take any other action which would, under otherwise applicable
                  principles of common law, give rise to a legal or equitable
                  discharge of such Guarantor from its liabilities under this
                  Guaranty.

            7. This Guaranty is a continuing one and all liabilities to which it
applies or may apply under the terms hereof shall be conclusively presumed to
have been created in reliance hereon. No failure or delay on the part of any
Secured Creditor in exercising any right, power or privilege hereunder shall
operate as a waiver thereof, nor shall any single or partial exercise of any
right, power or privilege hereunder preclude any other or


                                      -4-

further exercise thereof or the exercise of any other right, power or privilege.
The rights and remedies herein expressly specified are cumulative and not
exclusive of any rights or remedies which any Secured Creditor would otherwise
have. No notice to or demand on any Guarantor in any case shall entitle such
Guarantor to any other further notice or demand in similar or other
circumstances or constitute a waiver of the rights of any Secured Creditor to
any other or further action in any circumstances without notice or demand. It is
not necessary for any Secured Creditor to inquire into the capacity or powers of
the Borrower or the officers, directors, partners or agents acting or purporting
to act on its behalf, and any indebtedness made or created in reliance upon the
professed exercise of such powers shall be guaranteed hereunder.

            8. Any indebtedness of the Borrower now or hereafter held by any
Guarantor is hereby subordinated to the indebtedness of the Borrower to the
Secured Creditors, and such indebtedness of the Borrower to any Guarantor, if
the Administrative Agent or the Collateral Agent, after the occurrence and
during the continuance of an Event of Default, so requests, shall be collected,
enforced and received by such Guarantor as trustee for the Secured Creditors and
be paid over to the Secured Creditors on account of the indebtedness of the
Borrower to the Secured Creditors, but without affecting or impairing in any
manner the liability of such Guarantor under the other provisions of this
Guaranty. Without limiting the generality of the foregoing, each Guarantor
hereby agrees with the Secured Creditors that it will not exercise any right of
subrogation which it may at any time otherwise have as a result of this Guaranty
(whether contractual, under Section 509 of the Bankruptcy Code or otherwise)
until all Guaranteed Obligations have been irrevocably paid in full in cash.

            9. (a) Each Guarantor waives any right (except as shall be required
by applicable law and cannot be waived) to require the Secured Creditors to: (i)
proceed against the Borrower, any other Guarantor, any other guarantor of the
Guaranteed Obligations or any other party; (ii) proceed against or exhaust any
security held from the Borrower, any other Guarantor, any other guarantor of the
Guaranteed Obligations or any other party; or (iii) pursue any other remedy in
the Secured Creditors' power whatsoever. Each Guarantor waives any defense based
on or arising out of any defense of the Borrower, any other Guarantor, any other
guarantor of the Guaranteed Obligations or any other party other than payment in
full of the Guaranteed Obligations, including, without limitation, any defense
based on or arising out of the disability of the Borrower, any other Guarantor,
any other guarantor of the Guaranteed Obligations or any other party, or the
unenforceability of the Guaranteed Obligations or any part thereof from any
cause, or the cessation from any cause of the liability of the Borrower other
than payment in full of the Guaranteed Obligations. The Secured Creditors may,
at their election, foreclose on any security held by the Administrative Agent,
the Collateral Agent or the other Secured Creditors by one or more judicial or
nonjudicial sales, whether or not every aspect of any such sale is commercially
reasonable, or exercise any other right or remedy the Secured Creditors may have
against the Borrower or any other party, or any security, without affecting or
impairing in any way the liability of any Guarantor hereunder except to the
extent the Guaranteed Obligations have been paid in full in cash. Each Guarantor
waives any defense arising out of any such election by the Secured Creditors,
even though such election operates to impair or extinguish any right of
reimbursement or subrogation or


                                      -5-

other right or remedy of such Guarantor against the Borrower or any other party
or any security.

            (b) Each Guarantor waives all presentments, demands for performance,
protests and notices, including, without limitation, notices of nonperformance,
notices of protest, notices of dishonor, notices of acceptance of this Guaranty,
and notices of the existence, creation or incurring of new or additional
indebtedness. Each Guarantor assumes all responsibility for being and keeping
itself informed of the Borrower's financial condition and assets, and of all
other circumstances bearing upon the risk of nonpayment of the Guaranteed
Obligations and the nature, scope and extent of the risks which such Guarantor
assumes and incurs hereunder, and agrees that the Secured Creditors shall have
no duty to advise any Guarantor of information known to them regarding such
circumstances or risks.

            10. The Secured Creditors agree that this Guaranty may be enforced
only by the action of the Administrative Agent or the Collateral Agent, in each
case acting upon the instructions of the Required Lenders (or, after the date on
which all Credit Document Obligations have been paid in full, the holders of at
least the majority of the outstanding Other Obligations) and that no other
Secured Creditors shall have any right individually to seek to enforce or to
enforce this Guaranty or to realize upon the security to be granted by the
Security Documents, it being understood and agreed that such rights and remedies
may be exercised by the Administrative Agent or the Collateral Agent or, after
all the Credit Document Obligations have been paid in full, by the holders of at
least a majority of the outstanding Other Obligations, as the case may be, for
the benefit of the Secured Creditors upon the terms of this Guaranty and the
Security Documents. The Secured Creditors further agree that this Guaranty may
not be enforced against any director, officer, employee, partner, member or
stockholder of any Guarantor (except to the extent such partner, member or
stockholder is also a Guarantor hereunder).

            11. In order to induce the Lenders to make Loans to, and issue
Letters of Credit for the account of, the Borrower pursuant to the Credit
Agreement, and in order to induce the Other Creditors to execute, deliver and
perform the Interest Rate Protection Agreements and Other Hedging Agreements,
each Guarantor represents, warrants and covenants that:

            (a)   Such Guarantor (i) is a duly organized and validly existing
                  corporation, partnership or limited liability company, as the
                  case may be, in good standing under the laws of the
                  jurisdiction of its organization, (ii) has the corporate,
                  partnership or limited liability company, power and authority,
                  as the case may be, to own its property and assets and to
                  transact the business in which it is engaged and presently
                  proposes to engage and (iii) is duly qualified and is
                  authorized to do business and is in good standing in each
                  jurisdiction where the conduct of its business requires such
                  qualification except for failures to be so qualified which,
                  individually or in the aggregate, could not reasonably be
                  expected to have a Material Adverse Effect.


                                      -6-

            (b)   Such Guarantor has the corporate, partnership or limited
                  liability company, power and authority, as the case may be, to
                  execute, deliver and perform the terms and provisions of this
                  Guaranty and each other Credit Document to which it is a party
                  and has taken all necessary corporate, partnership or limited
                  liability company, action, as the case may be, to authorize
                  the execution, delivery and performance by it of this Guaranty
                  and each such other Credit Document. Such Guarantor has duly
                  executed and delivered this Guaranty and each other Credit
                  Document to which it is a party, and this Guaranty and each
                  such other Credit Document constitutes the legal, valid and
                  binding obligation of such Guarantor enforceable in accordance
                  with its terms, except to the extent that the enforceability
                  hereof or thereof may be limited by applicable bankruptcy,
                  insolvency, reorganization, moratorium or other similar laws
                  generally affecting creditors' rights and by equitable
                  principles (regardless of whether enforcement is sought in
                  equity or at law).

            (c)   Neither the execution, delivery or performance by such
                  Guarantor of this Guaranty or any other Credit Document to
                  which it is a party, nor compliance by it with the terms and
                  provisions hereof and thereof, will (i) contravene any
                  provision of any applicable law, statute, rule or regulation
                  or any applicable order, writ, injunction or decree of any
                  court or governmental instrumentality, (ii) conflict with or
                  result in any breach of any of the terms, covenants,
                  conditions or provisions of, or constitute a default under, or
                  result in the creation or imposition of (or the obligation to
                  create or impose) any Lien (except pursuant to the Security
                  Documents) upon any of the property or assets of such
                  Guarantor or any of its Subsidiaries pursuant to the terms of
                  any indenture, mortgage, deed of trust, loan agreement, credit
                  agreement, or any other material agreement, contract or
                  instrument to which such Guarantor or any of its Subsidiaries
                  is a party or by which it or any of its property or assets is
                  bound or to which it may be subject or (iii) violate any
                  provision of the certificate of incorporation or by-laws (or
                  equivalent organizational documents) of such Guarantor or any
                  of its Subsidiaries.

            (d)   No order, consent, approval, license, authorization or
                  validation of, or filing, recording or registration with
                  (except as have been obtained or made) or exemption by, any
                  governmental or public body or authority, or any subdivision
                  thereof, is required to authorize, or is required for, (i) the
                  execution, delivery and performance of this Guaranty by such
                  Guarantor or any other Credit Document to which such Guarantor
                  is a party or (ii) the legality, validity, binding effect or
                  enforceability of this Guaranty or any other Credit Document
                  to which such Guarantor is a party.

            (e)   There are no actions, suits or proceedings pending or, to such


                                      -7-

                  Guarantor's knowledge, threatened (i) with respect to this
                  Guaranty or any other Credit Document to which such Guarantor
                  is a party or (ii) with respect to such Guarantor or any of
                  its Subsidiaries that, either individually or in the
                  aggregate, could reasonably be expected to have a Material
                  Adverse Effect.

            12. Each Guarantor covenants and agrees that on and after the
Effective Date and until the termination of the Total Commitment and all
Interest Rate Protection Agreements and Other Hedging Agreements and until such
time as no Note or Letter of Credit remains outstanding and all Guaranteed
Obligations have been paid in full, such Guarantor will comply, and will cause
each of its Subsidiaries to comply, with all of the applicable provisions,
covenants and agreements contained in Sections 8 and 9 of the Credit Agreement,
and will take, or will refrain from taking, as the case may be, all actions that
are necessary to be taken or not taken so that it is not in violation of any
provision, covenant or agreement contained in Section 8 or 9 of the Credit
Agreement, and so that no Default or Event of Default, is caused by the actions
of such Guarantor or any of its Subsidiaries.

            13. The Guarantors hereby jointly and severally agree to pay all
reasonable out-of-pocket costs and expenses of each Secured Creditor in
connection with the enforcement of this Guaranty and of the Administrative Agent
in connection with any amendment, waiver or consent relating hereto (including
in each case, without limitation, the reasonable fees and disbursements of
counsel employed by each Secured Creditor).

            14. This Guaranty shall be binding upon each Guarantor and its
successors and assigns and shall inure to the benefit of the Secured Creditors
and their successors and assigns.

            15. Neither this Guaranty nor any provision hereof may be changed,
waived, discharged or terminated except with the written consent of each
Guarantor directly affected thereby and with the written consent of either (x)
the Required Lenders (or to the extent required by Section 13.12 of the Credit
Agreement, with the written consent of each Lender) at all times prior to the
time on which all Credit Document Obligations have been paid in full or (y) the
holders of at least a majority of the outstanding Other Obligations at all times
after the time on which all Credit Document Obligations have been paid in full;
provided, that any change, waiver, modification or variance affecting the rights
and benefits of a single Class (as defined below) of Secured Creditors (and not
all Secured Creditors in a like or similar manner) shall also require the
written consent of the Requisite Creditors (as defined below) of such Class of
Secured Creditors (it being understood that the addition or release of any
Guarantor hereunder shall not constitute a change, waiver, discharge or
termination affecting any Guarantor other than the Guarantor so added or
released). For the purpose of this Guaranty, the term "Class" shall mean each
class of Secured Creditors, i.e., whether (x) the Lender Creditors as holders of
the Credit Document Obligations or (y) the Other Creditors as the holders of the
Other Obligations. For the purpose of this Guaranty, the term "Requisite
Creditors" of any Class shall mean (x) with respect to the Credit Document
Obligations, the Required Lender (or to the extent required by Section 13.12 of
the Credit Agreement, each Lender)


                                      -8-

and (y) with respect to the Other Obligations, the holders of at least a
majority of all obligations outstanding from time to time under the Interest
Rate Protection or Other Hedging Agreements.

            16. Each Guarantor acknowledges that an executed (or conformed) copy
of each of the Credit Documents and Interest Rate Protection Agreements or Other
Hedging Agreements has been made available to a senior officer of such Guarantor
and such officer is familiar with the contents thereof.

            17. In addition to any rights now or hereafter granted under
applicable law and not by way of limitation of any such rights, upon the
occurrence and during the continuance of an Event of Default (such term to mean
and include any "Event of Default" as defined in the Credit Agreement or any
payment default under any Interest Rate Protection Agreement or Other Hedging
Agreement continuing after any applicable grace period), each Secured Creditor
is hereby authorized, at any time or from time to time, without notice to any
Guarantor or to any other Person, any such notice being expressly waived, to set
off and to appropriate and apply any and all deposits (general or special) and
any other indebtedness at any time held or owing by such Secured Creditor to or
for the credit or the account of such Guarantor, against and on account of the
obligations and liabilities of such Guarantor to such Secured Creditor under
this Guaranty, irrespective of whether or not such Secured Creditor shall have
made any demand hereunder and although said obligations, liabilities, deposits
or claims, or any of them, shall be contingent or un-matured.

            18. All notices, requests, demands or other communications pursuant
hereto shall be sent or delivered by mail, telegraph, telex, telecopy, cable or
overnight courier service and all such notices and communications shall, when
mailed, telegraphed, telexed, telecopied, or cabled or sent by overnight
courier, be effective when deposited in the mails, delivered to the telegraph
company, cable company or overnight courier, as the case may be, or sent by
telex or telecopier and when mailed shall be effective three Business Days
following deposit in the mail with proper postage, except that notices and
communications to the Administrative Agent or any Guarantor shall not be
effective until received by the Administrative Agent or such Guarantor, as the
case may be. All notices and other communications shall be in writing and
addressed to such party at (i) in the case of any Lender Creditor, as provided
in the Credit Agreement, (ii) in the case of any Guarantor, as provided in the
Security Agreement and (iii) in the case of any Other Creditor, at such address
as such Other Creditor shall have specified in writing to the Guarantors; or in
any case at such other address as any of the Persons listed above may hereafter
notify the others in writing.

            19. If claim is ever made upon any Secured Creditor for repayment or
recovery of any amount or amounts received in payment or on account of any of
the Guaranteed Obligations and any of the aforesaid payees repays all or part of
said amount by reason of (i) any judgment, decree or order of any court or
administrative body having jurisdiction over such payee or any of its property
or (ii) any settlement or compromise of any such claim effected by such payee
with any such claimant (including the Borrower) then and in such event each
Guarantor agrees that any such judgment, decree, order,


                                      -9-

settlement or compromise shall be binding upon such Guarantor, notwithstanding
any revocation hereof or other instrument evidencing any liability of the
Borrower, and such Guarantor shall be and remain liable to the aforesaid payees
hereunder for the amount so repaid or recovered to the same extent as if such
amount had never originally been received by any such payee.

            20. (a) THIS GUARANTY AND THE RIGHTS AND OBLIGATIONS OF THE SECURED
CREDITORS AND OF THE UNDERSIGNED HEREUNDER SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAW OF THE STATE OF ILLINOIS. Any legal action or proceeding
with respect to this Guaranty or any other Credit Document to which any
Guarantor is a party may be brought in the courts of the State of Illinois or of
the United States of America for the Northern District of Illinois in each case
located in the City of Chicago, and, by execution and delivery of this Guaranty,
each Guarantor hereby irrevocably accepts for itself and in respect of its
property, generally and unconditionally, the jurisdiction of the aforesaid
courts. Each Guarantor hereby further irrevocably waives any claim that any such
court lacks personal jurisdiction over such Guarantor, and agrees not to plead
or claim in any legal action or proceeding with respect to this Guaranty or any
other Credit Document to which such Guarantor is a party brought in any of the
aforesaid courts that any such court lacks personal jurisdiction over such
Guarantor. Each Guarantor further irrevocably consents to the service of process
out of any of the aforementioned courts in any such action or proceeding by the
mailing of copies thereof by registered or certified mail, postage prepaid, to
such Guarantor at its address set forth opposite its signature below, such
service to become effective 30 days after such mailing. Each Guarantor hereby
irrevocably waives any objection to such service of process and further
irrevocably waives and agrees not to plead or claim in any action or proceeding
commenced hereunder or under any other Credit Document to which such Guarantor
is a party that such service of process was in any way invalid or ineffective.
Nothing herein shall affect the right of any of the Secured Creditors to serve
process in any other manner permitted by law or to commence legal proceedings or
otherwise proceed against each Guarantor in any other jurisdiction.

            (b) Each Guarantor hereby irrevocably waives (to the fullest extent
permitted by applicable law) any objection which it may now or hereafter have to
the laying of venue of any of the aforesaid actions or proceedings arising out
of or in connection with this Guaranty or any other Credit Document to which
such Guarantor is a party brought in the courts referred to in clause (a) above
and hereby further irrevocably waives and agrees not to plead or claim in any
such court that such action or proceeding brought in any such court has been
brought in an inconvenient forum.

            (c) EACH GUARANTOR AND EACH SECURED CREDITOR (BY ITS ACCEPTANCE OF
THE BENEFITS OF THIS GUARANTY) HEREBY IRREVOCABLY WAIVES ALL RIGHTS TO A TRIAL
BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO
THIS GUARANTY, THE OTHER CREDIT DOCUMENTS TO WHICH SUCH GUARANTOR IS A PARTY OR
THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.


                                      -10-

            21. In the event that all of the capital stock of one or more
Guarantors is sold or otherwise disposed of or liquidated in compliance with the
requirements of Section 9.02 of the Credit Agreement (or such sale or other
disposition has been approved in writing by the Required Lenders (or all Lenders
if required by Section 13.12 of the Credit Agreement)) and the proceeds of such
sale, disposition or liquidation are applied in accordance with the provisions
of the Credit Agreement, to the extent applicable, such Guarantor shall upon
consummation of such sale or other disposition (except to the extent that such
sale or disposition is to the Borrower or another Subsidiary thereof) be
released from this Guaranty automatically and without further action and this
Guaranty shall, as to each such Guarantor or Guarantors, terminate, and have no
further force or effect (it being understood and agreed that the sale of one or
more Persons that own, directly or indirectly, all of the capital stock of any
Guarantor shall be deemed to be a sale of such Guarantor for the purposes of
this Section 21).

            22. At any time a payment in respect of the Guaranteed Obligations
is made under this Guaranty, the right of contribution of each Guarantor against
each other Guarantor shall be determined as provided in the immediately
following sentence, with the right of contribution of each Guarantor to be
revised and restated as of each date on which a payment (a "Relevant Payment")
is made on the Guaranteed Obligations under this Guaranty. At any time that a
Relevant Payment is made by a Guarantor that results in the aggregate payments
made by such Guarantor in respect of the Guaranteed Obligations to, and
including the date of the Relevant Payment exceeding such Guarantor's
Contribution Percentage (as defined below) of the aggregate payments made by all
Guarantors in respect of the Guaranteed Obligations to and including the date of
the Relevant Payment (such excess, the "Aggregate Excess Amount"), each such
Guarantor shall have a right of contribution against each other Guarantor who
has made payments in respect of the Guaranteed Obligations to and including the
date of the Relevant Payment in an aggregate amount less than such other
Guarantor's Contribution Percentage of the aggregate payments made to and
including the date of the Relevant Payment by all Guarantors in respect of the
Guaranteed Obligations (the aggregate amount of such deficit, the "Aggregate
Deficit Amount") in an amount equal to (x) a fraction the numerator of which is
the Aggregate Excess Amount of such Guarantor and the denominator of which is
the Aggregate Excess Amount of all Guarantors multiplied by (y) the Aggregate
Deficit Amount of such other Guarantor. A Guarantor's right of contribution
pursuant to the preceding sentences shall arise at the time of each computation,
subject to adjustment to the time of each computation; provided, that no
Guarantor may take any action to enforce such right until the Guaranteed
Obligations have been irrevocably paid in full in cash, it being expressly
recognized and agreed by all parties hereto that any Guarantor's right of
contribution arising pursuant to this Section 22 against any other Guarantor
shall be expressly junior and subordinate to such other Guarantor's obligations
and liabilities in respect of the Guaranteed Obligations and any other
obligations owing under this Guaranty. As used in this Section 22: (i) each
Guarantor's "Contribution Percentage" shall mean the percentage obtained by
dividing (x) the Adjusted Net Worth (as defined below) of such Guarantor by (y)
the aggregate Adjusted Net Worth of all Guarantors; (ii) the "Adjusted Net
Worth" of each Guarantor shall mean the greater of (x) the Net Worth (as defined
below) of such Guarantor and (y) zero; and (iii) the "Net Worth" of each
Guarantor shall mean the amount by which the


                                      -11-

fair salable value of such Guarantor's assets on the date of any Relevant
Payment exceeds its existing debts and other liabilities (including contingent
liabilities, but without giving effect to any Guaranteed Obligations arising
under this Guaranty) on such date. All parties hereto recognize and agree that,
except for any right of contribution arising pursuant to this Section 22, each
Guarantor who makes any payment in respect of the Guaranteed Obligations shall
have no right of contribution or subrogation against any other Guarantor in
respect of such payment until all of the Guaranteed Obligations have been
irrevocably paid in full in cash. Each of the Guarantors recognizes and
acknowledges that the rights to contribution arising hereunder shall constitute
an asset in favor of the party entitled to such contribution. In this
connection, each Guarantor has the right to waive its contribution right against
any Guarantor to the extent that after giving effect to such waiver such
Guarantor would remain solvent, in the determination of the Required Lenders.

            23. Each Guarantor and each Secured Creditor (by its acceptance of
the benefits of this Guaranty) hereby confirms that it is its intention that
this Guaranty not constitute a fraudulent transfer or conveyance for purposes of
the Bankruptcy Code, the Uniform Fraudulent Conveyance Act of any similar
Federal or state law. To effectuate the foregoing intention, each Guarantor and
each Secured Creditor (by its acceptance of the benefits of this Guaranty)
hereby irrevocably agrees that the Guaranteed Obligations guaranteed by such
Guarantor shall be limited to such amount as will, after giving effect to such
maximum amount and all other (contingent or otherwise) liabilities of such
Guarantor that are relevant under such laws, and after giving effect to any
rights to contribution pursuant to any agreement providing for an equitable
contribution among such Guarantor and other Guarantors, result in the Guaranteed
Obligations of such Guarantor in respect of such maximum amount not constituting
a fraudulent transfer or conveyance.

            24. This Guaranty may be executed in any number of counterparts and
by the different parties hereto on separate counterparts, each of which when so
executed and delivered shall be an original, but all of which shall together
constitute one and the same instrument. A set of counterparts executed by all
the parties hereto shall be lodged with the Guarantors and the Administrative
Agent.

            25. All payments made by any Guarantor hereunder will be made
without setoff, counterclaim or other defense and on the same basis as payments
are made by the Borrower under Sections 4.03 and 4.04 of the Credit Agreement.

            26. It is understood and agreed that any Subsidiary of the Borrower
that is required to execute a counterpart of this Guaranty after the date hereof
pursuant to the Credit Agreement shall become a Guarantor hereunder by executing
a counterpart hereof and delivering the same to the Administrative Agent.

            27. Each Guarantor has independently, and without reliance on any
information supplied by any Secured Creditor, taken, and will continue to take,
whatever steps it deems necessary to evaluate the financial condition and
affairs of the Borrower or any Collateral, and the Secured Creditors shall have
no duty to advise any Guarantor of


                                      -12-

information at any time known to them regarding such financial condition or
affairs or any Collateral.

                               [Signatures Follow]


                                      -13-

            IN WITNESS WHEREOF, each Guarantor has caused this Guaranty to be
executed and delivered as of the date first above written.

                                    INFOUSA MARKETING, INC.,
                                        as a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------


                                    AMERICAN CHURCH LISTS, INC.,
                                        as a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------


                                    BUSINESSCREDITUSA.COM,
                                        as a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------


                                    CD-ROM TECHNOLOGIES, INC.,
                                        as a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------


                                    CITY DIRECTORIES, INC.,
                                        as a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------

                                 Signature Page
                                       to
                              Subsidiaries Guaranty

                                    STRATEGIC INFORMATION
                                    MANAGEMENT, INC., as a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------


                                    LIST BAZAAR.COM, as
                                     a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------


                                    WALTER KARL, INC., as
                                     a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------


                                    VIDEO YELLOW PAGES USA.COM,
                                    INC., as a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------


                                    IDEXEC, INC.,  as a Guarantor

                                    By
                                      ----------------------------------
                                    Title:
                                           -----------------------------

                                 Signature Page
                                       to
                              Subsidiaries Guaranty

Accepted and Agreed to:

BANK OF AMERICA, N.A.,
  as Collateral Agent


By
  ----------------------------
  Title: Vice President

                                 Signature Page
                                       to
                              Subsidiaries Guaranty