10 EXHIBIT B to
                                                   Common Stock Purchase Warrant

                              [FORM OF] ASSIGNMENT

                  FOR VALUE RECEIVED, the undersigned hereby sells, assigns, and
transfers unto the Assignee named below all of the rights of the  undersigned to
purchase  Common  Stock,  par value $.001 per share  ("Common  Stock") of CAPITA
RESEARCH GROUP, INC.  represented by the Warrant,  with respect to the number of
shares of Common Stock set forth below:

Name of Assignee              Address                       No. of Shares
- ----------------              -------                       -------------

and does hereby irrevocably  constitute and appoint ________ as Attorney to make
such transfer on the books of CAPITA  RESEARCH GROUP,  INC.  maintained for that
purpose, with full power of substitution in the premises.

Dated: ____________________



                                     -------------------------
                                     [name]






359151.5
22795-0999

                                                                   Exhibit 10(b)

                                                              MODIFICATION NO. 1

             NASA and  NextGen  Systems,  Incorporated  entered  into  Exclusive
             License  Agreement No. DE-234 on August 4, 1997. By this  Agreement
             NASA and NextGen Systems,  Incorporated  modify  Exclusive  License
             Agreement No. DE-234 as follows:

             Article II, Section 2.9 is replaced by:

                       "FIELD OF USE" means  advertising and promotions for, and
             content of, products, services,  entertainment,  and organizations,
             including  DIRECT  RESPONSE  product or  services  promotions,  and
             including packaging and product design and ON- PRODUCT advertising,
             for use in appropriate media.

             In witness  whereof,  each party has caused  this  Agreement  to be
             executed by its duly authorized representative:

             National Aeronautics and        NextGen Systems, Inc.
               Space Administration

             By: /s/ Edward A. Frankle         By: /s/ David B. Hunter
                 ---------------------             -------------------
                     Edward A. Frankle                  David B. Hunter

                        Typed Name                         Typed Name


             Title:   General Counsel           Title: Vice President
                      ---------------           ---------------------

             Date:   7/31/98                           Date:  6/29/98
                     -------                                  -------