Document:

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                                ESCROW AGREEMENT

         ESCROW AGREEMENT dated March 8, 2000, by and among SOFT PLUS, INC., a
California corporation ("Soft Plus"), U.S. Interactive, Inc. ("USI"), FIRST
ACQUISITION CO., a Delaware corporation ("Acquisition"), MOHAN UTTARWAR ("Soft
Plus Shareholder Agent") on behalf of the "Shareholders" (as defined below), and
THE CHASE MANHATTAN TRUST COMPANY, NATIONAL ASSOCIATION ("Escrow Agent").

                                   BACKGROUND

         Acquisition, Soft Plus, USI, Mohan Uttarwar, Vijay Uttarwar, Vinay
Deshpande and O.P. Srinivasan (the "Principal Shareholders") are parties to a
certain Agreement and Plan of Merger dated February 1, 2000, including the
Exhibits and Schedules thereto (collectively the "Merger Agreement"), pursuant
to which there is required to be deposited in escrow __________ shares of common
stock, par value $.001 per share of USI (the "Escrow Shares"), to be held by the
Escrow Agent subject to the terms and conditions set forth herein.

         Acquisition has directed ChaseMellon Shareholder Services (the
"Transfer Agent") to register the Escrow Shares in the name of the Escrow Agent.
The Escrow Shares together with all non-cash dividends payable after the Closing
Date with respect to the Escrow Shares are collectively referred to herein as
the "Escrow Fund." Escrow Agent shall hold the Escrow Fund subject to the terms
and conditions set forth herein.

         Pursuant to the terms of the Merger Agreement the Principal
Shareholders and Soft Plus have executed and delivered the Soft Plus Shareholder
Agent Agreement, appointing Mohan Uttarwar, as the Soft Plus Shareholder Agent
to act as the agent, attorney-in-fact and representative for the Soft Plus
Shareholders in accordance with the terms of this Escrow Agreement.

         All capitalized terms used herein and not otherwise defined herein
shall have the meanings given to such terms in the Merger Agreement.

         NOW, THEREFORE, in consideration of the foregoing background and of the
mutual covenants hereinafter set forth and in the Merger Agreement, the parties
hereto, intending to be legally bound, hereby agree as follows:

         1. Appointment of Escrow Agent. Soft Plus, as it exists following the
merger of Soft Plus, a wholly-owned subsidiary of USI, with and into Acquisition
(the "Acquisition") and the Soft Plus Shareholder Agent do hereby appoint and
designate The Chase Manhattan Trust Company, National Association as the Escrow
Agent for the purposes set forth herein, and the Escrow Agent does hereby accept
such appointment under the terms and conditions set forth herein.

         2. Establishment of Escrow Fund. Pursuant to the terms of Section 3.1.5
of the Merger Agreement, Acquisition hereby deposits with Escrow Agent the
Escrow Shares. The Escrow Shares shall be issued in the amounts set forth on
Exhibit I attached hereto. Exhibit I hereto sets forth the name of each Soft
Plus Shareholder and the number and percentage of Escrow Shares attributable to
such Soft Plus Shareholder of the Escrow Fund. Immediately upon ascertaining
that the Transfer Agent has complied with its written instructions to register
the Escrow Shares in the name of the Escrow Agent, as aforesaid, neither the
USI, Acquisition nor Soft Plus shall have any liability to the Soft Plus
Shareholder Agent or any Soft Plus Shareholder with respect to the delivery of
the Escrow Shares. The shareholders of Soft Plus whose shares are included in
the Escrow Shares shall be entitled to vote such shares in accordance with their
pro rata ownership of the Escrow Shares.

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         3. Disposition and Termination.

            3.1 The Escrow Agent shall disburse the Escrow Fund upon and
pursuant to the written instructions set forth in this Section 3.

                3.1.1 Disposition to Acquisition or USI. Subject to Section 4
hereof, from time to time, on the 15th business day (or the next day on which
shares of USI Common Stock are traded on The Nasdaq Stock Market, Inc.
("Nasdaq") if on such 15th business day no such trading is to occur) (the "Stock
Disbursement Date") following receipt fromUSI of a written notice of instruction
signed by an authorized officer of USI to do so (the "Disbursement Notice"),
which Disbursement Notice shall set forth the amount of a claim ("Escrow Claim
Amount"), the Escrow Agent shall immediately disburse to Acquisition or USI, as
determined by USI, such number of shares of Escrow Shares equal to the amount of
the Escrow Claim Amount. The number of shares to be disbursed shall be
determined by using the USI Closing Date Price.

                3.1.2 Disposition to the Soft Plus Shareholder Agent. On the
first anniversary of the Closing Date, the Escrow Agent shall, by written
notice, substantially in the form attached hereto as Exhibit II, direct the
Transfer Agent to register in the name of and in the amount of the percentage of
the Escrow Shares as set forth on Exhibit I any shares remaining in the Escrow
Fund on such date excluding (A) that number of shares which the Escrow Agent
disbursed in connection with any Disbursement Notices received by the Escrow
Agent from Acquisition or USI pursuant to the terms of Section 3.1.1 above, (B)
that number of shares which the Escrow Agent might have to disburse in
connection with any amounts identified in a notice (a "Claim Notice") received
by the Escrow Agent from an authorized officer of USI or Acquisition stating
that a claim has been asserted against USI or Acquisition by a third party, but
with respect to which amounts Acquisition or USI has not yet furnished to Escrow
Agent a Disbursement Notice and (C) that number of Shares representing the
Reserve (as defined in Section 4.2 hereof). With respect to any amounts
identified in a Disbursement Notice or Claim Notice, the Escrow Agent shall
retain an aggregate amount of the Escrow Shares (rounded up to the next whole
share) which has a value equal to the amount specified in the Disbursement
Notice and Claim Notice based on the USI Closing Date Price, plus commissions
and other sales charges which the Escrow Agent determines may be necessary. With
respect to a Claim Notice, the Escrow Agent shall retain such number of shares
in the Escrow Fund until such time as a Disbursement Notice is received from USI
or Acquisition, or, joint written instructions (a "Joint Instruction Letter")
shall be received from USI or Acquisition on the one hand and the Soft Plus
Shareholder Agent on the other, in which event Escrow Agent shall deliver the
shares in accordance with the instructions stated in such Disbursement Notice
subject to Section 4 hereof, or Joint Instruction Letter, as the case may be.

                3.1.3 Acquisition and USI agree to furnish to the Soft Plus
Shareholder Agent copies of all notices sent by Acquisition or USI to the Escrow
Agent at the time such notices are sent to the Escrow Agent. In addition,
Acquisition and USI agree to furnish to the Soft Plus Shareholder Agent (but not
to the Escrow Agent), as an attachment to each such notice so furnished to the
Soft Plus Shareholder Agent, a full written explanation of each claim, including
the amount thereof, the provision(s) of the Merger Agreement or other agreement
delivered in connection therewith, under which such claim is asserted, and a
summary of the relevant facts upon which such claim is based underlying its
requests for reimbursement made on any such notice.

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                3.1.4 The Escrow Agent shall provide a copy of its written
instructions pursuant to this Section 3 to Acquisition or USI, as the case may
be, and to the Soft Plus Shareholder Agent.

            3.2 Upon registration by the Transfer Agent of all of the Escrow
Shares in the Escrow Fund as provided in Sections 3.1.1 and 3.1.2 hereof, and
upon disbursement by the Escrow Agent of the last remaining shares and funds in
the Escrow Fund, this Escrow Agreement shall terminate, subject to the
provisions of Sections 5 and 8 hereunder, which Sections shall survive such
termination. This Escrow Agreement may also be terminated at any time upon the
receipt by Escrow Agent of ten (10) days' prior joint written notice of
termination executed by USI or Acquisition, on the one hand, and the Soft Plus
Shareholder Agent on the other, directing the distribution of the Escrow Fund.

         4. Objections to Disbursements.

            4.1 If the Soft Plus Shareholder Agent objects to any Escrow Claim
Amount contained in any Disbursement Notice received from Acquisition or USI,
the Soft Plus Shareholder Agent shall provide written notice of such objection
to such Disbursement Notice (an "Objection Notice") to Escrow Agent (with a copy
simultaneously furnished to USI) before 5:00 p.m. (Eastern Standard Time) on the
business day prior to the Stock Disbursement Date.

            4.2 Pending resolution of the objection described in the Objection
Notice in accordance with the terms of this Section 4 and Section 6 hereof,
Escrow Agent shall not take the action required by Section 3.1.1 with respect to
the Escrow Claim Amount, but shall retain as a reserve (the "Reserve") that
number of shares of Escrow Shares (rounded up to the next whole share) with a
value equal to the relevant Escrow Claim Amount, such number of shares to be
valued at the USI Closing Date Price; provided, however, if an Objection Notice
objects to less than the entire amount of the Escrow Claim Amount, then the
Escrow Agent shall disburse Escrow Shares equal to the Escrow Claim Amount not
in dispute. If Escrow Agent does not receive an Objection Notice before 5:00
p.m. on the business day prior to the Stock Disbursement Date, the Soft Plus
Shareholder Agent shall be deemed to have approved such Disbursement Notice.

            4.3 In case of any Objection Notice, the Soft Plus Shareholder Agent
and USI shall attempt in good faith to agree upon the rights of the respective
parties with respect to each Objection Notice within 45 days after Escrow
Agent's receipt of the Objection Notice (the "Negotiation Period"). If Soft Plus
Shareholder Agent and USI should so agree during the Negotiation Period, a
memorandum setting forth such agreement shall be prepared and signed by both
parties and shall be furnished to Escrow Agent. Escrow Agent shall be entitled
to rely on any such memorandum and distribute the Escrow Shares from the Escrow
Fund in accordance with the terms thereof.

            4.4 If no agreement in accordance with Section 4.3 has been reached
by the end of the Negotiation Period, either the Soft Plus Shareholder Agent or
USI may demand arbitration of the matter unless the amount of the Damages is at
issue in pending litigation with a third party, in which event arbitration shall
not be commenced until such amount is ascertained by settlement or a
non-appealable decision of a court of competent jurisdiction or both parties
agree to arbitration; and in either such event the matter shall be settled by
arbitration conducted by three arbitrators, as follows. Within 15 days after
Soft Plus Shareholder Agent or USI delivers a written demand for arbitration to
the other party, Soft Plus Shareholder Agent or USI shall each select one
arbitrator. The third arbitrator shall be selected as soon as practicable by
agreement of the first two arbitrators or, failing such agreement, by the
American Arbitration Association. The arbitration shall be conducted in
Pennsylvania. The written decision of a majority of the three arbitrators as to
the validity and amount of any claim in such Disbursement Notice shall be
binding and conclusive upon the parties to this Agreement, and Escrow Agent
shall be entitled to act in accordance with such decision and make or withhold
payments out of the Escrow Fund in accordance therewith. The arbitrators shall
award reimbursement to the prevailing party in the arbitration of its reasonable
expenses of the arbitration (including costs and reasonable attorneys' fees).
The award of the arbitrators shall be the sole and exclusive monetary remedy of
the parties and shall be enforceable in any court of competent jurisdiction.
Notwithstanding the foregoing, any party shall be entitled to seek injunctive
relief or other equitable remedies from any state or federal court sitting in
the Eastern District of Pennsylvania.

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         5. Duties and Responsibilities of Escrow Agent.

            5.1 Acquisition and the Soft Plus Shareholder Agent acknowledge and
agree that the Escrow Agent (a) shall not be responsible for any of the
agreements referred to herein, including the Merger Agreement, but shall be
obligated only for the performance of such duties as are specifically set forth
in this Escrow Agreement; (b) shall not be obligated to take any legal or other
action hereunder which might in its judgment involve any expense or liability
unless it shall have been furnished with acceptable indemnification and that no
further duties or responsibilities shall be implied; (c) may rely on and shall
be protected in acting or refraining from acting upon any written notice,
instruction (including, without limitation, wire transfer instructions, whether
incorporated herein or provided in separate written instructions), instrument,
statement, request or document furnished to it hereunder and believed by it to
be genuine and to have been signed or presented by the proper person, and shall
have no responsibility for determining the accuracy thereof and (d) may consult
counsel satisfactory to it, including in-house counsel, and the opinion of such
counsel shall be full and complete authorization and protection in respect of
any action taken, suffered or omitted by it hereunder in good faith and in
accordance with the opinion of such counsel.

            5.2 Neither the Escrow Agent nor any of its directors, officers or
employees shall be liable to anyone for any action taken or omitted to be taken
by it or any of its directors, officers or employees hereunder except in the
case of gross negligence, fraud or willful misconduct. The Escrow Agent shall
not incur any liability for following the instructions herein contained or
expressly provided for, or written instructions given by the parties hereto. In
the administration of this Escrow Agreement and the Escrow Fund hereunder, the
Escrow Agent may execute any of its powers and perform its duties hereunder
directly or through agents or attorneys and may, consult with counsel,
accountants and other skilled persons to be selected and retained by it. USI and
the Soft Plus Shareholder Agent, jointly and severally, covenant and agree to
indemnify the Escrow Agent its directors, officers, agents and employees
(collectively, the "Indemnitees") harmless from and against any and all
liabilities, losses, damages, fines, suits, actions, demands, penalties, costs
and expenses, including reasonable out-of-pocket, incidental expenses, legal
fees and expenses, the reasonable allocated costs and expenses of in-house
counsel and legal staff and the reasonable costs and expenses of defending or
preparing to defend against any claim ("Losses") that may be imposed on,
incurred by, or asserted against, the Indemnitees or any of them for following
any instruction or other direction upon which the Escrow Agent is authorized to
rely pursuant to the terms of this Escrow Agreement. In addition to and not in
limitation of the immediately preceding sentence, USI and the Soft Plus
Shareholder Agent, jointly and severally, also covenant and agree to indemnify
and hold the Indemnitees and each of them harmless from and against any and all
Losses that may be imposed on, incurred by, or asserted against the Indemnitees
or any of them in connection with or arising out of the Escrow Agent's
performance under this Escrow Agreement provided the Escrow Agent has not acted
with gross negligence or fraud or engaged in willful misconduct. The provisions
of this Section 5.2 shall survive the termination of this Escrow Agreement and
the resignation or removal of the Escrow Agent for any reason. Anything in this
Escrow Agreement to the contrary notwithstanding, in no event shall the Escrow
Agent be liable for punitive, indirect or consequential loss or damage of any
kind whatsoever (including but not limited to lost profits), even if the Escrow
Agent has been advised of such loss or damage and regardless of the form of
action. The foregoing is not intended to, nor shall it, absolve Escrow Agent of
liability for actual damages it causes in connection with its duties hereunder,
which are often referred to as "special" damages.

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            5.3 Taxes incurred with respect to the earnings of the Escrow Fund
and payments made hereunder shall be borne by the party to whom such earnings
are distributed (or to be distributed) or to whom such payment is made. If such
earnings are not distributed during the calendar year in which they arise, then
such earnings shall be allocated to the Soft Plus Shareholders as their interest
may appear. To the extent that Escrow Agent becomes liable for the payment of
any taxes in respect of income derived from the investment of funds held or
payments made hereunder, Escrow Agent shall satisfy such liability to the extent
possible from the Escrow Fund. USI, Acquisition and the Soft Plus Shareholder
Agent, jointly and severally, agree to assume any and all obligations imposed
now or hereafter by any applicable tax law with respect to the payment of the
Escrow Fund under this Agreement, and to indemnify and hold the Escrow Agent
harmless from and against any taxes, additions for late payment, interest,
penalties and other expenses, that may be assessed against the Escrow Agent on
any such payment or other activities under this Agreement. USI, Acquisition and
the Soft Plus Shareholder Agent undertake to instruct the Escrow Agent in
writing with respect to the Escrow Agent's responsibility for withholding and
other taxes, assessments or other governmental charges, certifications and
governmental reporting in connection with its acting as Escrow Agent under this
Agreement. USI, Acquisition and the Soft Plus Shareholder Agent, jointly and
severally, agree to indemnify and hold the Escrow Agent harmless from any
liability on account of taxes, assessments or other governmental charges,
including without limitation the withholding or deduction or the failure to
withhold or deduct same, and any liability for failure to obtain proper
certifications or to properly report to governmental authorities, to which the
Escrow Agent may be or become subject in connection with or which arises out of
this Agreement, including costs and expenses (including reasonable legal fees
and expenses), interest and penalties. Notwithstanding the foregoing, no
distributions will be made unless the Escrow Agent has on file an original,
signed W-9 form or its equivalent prior to distribution, and the tax
identification numbers of all distributees. Each party hereto, except the Escrow
Agent, shall, on the signature page of this Escrow Agreement, and each Soft Plus
Shareholder shall, on Exhibit I hereto, provide the Escrow Agent with its Tax
Identification Number ("TIN") as assigned by the Internal Revenue Service.

         6. Dispute Resolution; Third Party Claims. It is understood and agreed
that should any dispute arise with respect to the delivery, ownership, right of
possession and/or disposition of the Escrow Fund, or should any claim be made
upon such Escrow Fund by a third party, the Escrow Agent upon receipt of written
notice of such dispute or claim by the parties hereto or by a third party, is
authorized and directed to retain in its possession without liability to anyone,
all or any of said Escrow Fund until such dispute shall have been settled either
in accordance with Section 4.3 or in the case of a claim being made upon the
Escrow Fund by a third party, in accordance with Article XII of the Merger
Agreement. The Escrow Agent may, but shall be under no duty whatsoever to,
institute or defend any legal proceedings which relate to the Escrow Fund. The
Escrow Agent shall provide notice to Acquisition, USI and the Soft Plus
Shareholder Agent promptly upon receipt of any notice of a claim or dispute upon
the Escrow Fund by a third party.

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         7. Resignation. The Escrow Agent may resign and be discharged from its
duties or obligations hereunder by giving not less than ten days written notice
to USI, Acquisition and the Soft Plus Shareholder Agent. Such resignation shall
take effect 30 days after the giving of such notice (the "Resignation Period"),
or upon receipt by the Escrow Agent of an instrument of acceptance executed by a
successor escrow agent and upon delivery by the Escrow Agent to such successor
of all the escrow documents and funds or securities then held by the Escrow
Agent hereunder. If no such successor escrow agent is appointed in writing prior
to the effective date of such resignation, the Escrow Agent shall direct the
Transfer Agent to register all of the Escrow Shares to Acquisition or its
successor (unless the Escrow Agent shall have received written notice from USI
otherwise prior to expiration of the Resignation Period) and, after deduction
its fees and expenses if not theretofore paid or adequately provided for, shall
deliver all monies included in the Escrow Fund, if any, by check payable to
Acquisition, to be held in accordance with the terms of this Escrow Agreement,
whereupon the Escrow Agent shall have no further duties or responsibilities
under this Agreement and Acquisition shall use its best efforts to (a) promptly
designate a successor escrow agent, subject to the approval of the Soft Plus
Shareholder Agent, which shall not be unreasonably withheld, (b) direct the
Transfer Agent to register such Escrow Shares in the name of such successor
escrow agent and (c) deliver such monies, if any, to such successor escrow
agent.

         8. Escrow Agent Not Personally Liable. All of the parties hereto
expressly recognize that Escrow Agent, acting in such capacity, shall not have
any personal liability with respect to matters, promises or agreements
hereunder, including, without limitation, under Sections 5 and 9 hereof, or in
any other fashion under this Escrow Agreement, but instead is in all matters
hereunder acting solely as the agent of Acquisition with the consent of the Soft
Plus Shareholder Agent; provided, however, that Escrow Agent shall be liable for
its own gross negligence, willful misconduct and fraud.

         9. Compensation and Expenses.

            9.1 Pursuant to the terms of the Merger Agreement, Acquisition
agrees to pay the Escrow Agent's reasonable compensation for its normal services
hereunder in accordance with the fee schedule attached hereto as Exhibit III,
which may be subject to change on an annual basis. The Escrow Agent shall be
entitled to reimbursement on demand for all expenses incurred in connection with
the administration of the escrow created hereby which are in excess of its
compensation for normal services hereunder, including without limitation,
payment of any legal fees and expenses incurred by the Escrow Agent in its
administration of this Escrow Agreement.

            9.2 Notwithstanding Section 9.1 above, any fees or expenses arising
in connection with any matters described in Section 6 above shall be borne
entirely by the party which does not prevail in such matter or as otherwise
determined by the parties or by a court of competent jurisdiction.

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         10. Notices. Any notice permitted or required hereunder shall be deemed
to have been duly given and delivered when delivered personally, or when
delivered if mailed certified or registered mail, postage prepaid or when
delivered by a nationally recognized overnight carrier, to the parties at their
address set forth below:

                  If to USI or Acquisition:

                  U.S. Interactive, Inc.
                  2012 Renaissance Boulevard
                  King of Prussia, PA 19406

                  Attention: Lawrence F. Shay, Esquire
                             Senior Vice President and General Counsel

                  with a copy to:

                  Dilworth Paxson LLP
                  3200 Mellon Bank Center
                  1735 Market Street
                  Philadelphia, Pennsylvania 19103

                  Attention: Michael D. Ecker, Esquire

                  If to the Soft Plus Shareholder Agent:

                  Mohan Uttarwar
                  c/o Soft Plus, Inc.
                  18900 Stevens Creek Boulevard
                  Suite 101
                  Cupertino, CA 95014

                  with a copy to:

                  Tae Hea Nahm, Esquire
                  The Venture Law Group
                  2775 Sand Hill Road
                  Menlo Park, CA 94025

                  If to Escrow Agent:

                  The Chase Manhattan Trust Company,
                  National Association
                  Capital Markets Fiduciary Services
                  One Liberty Place, Suite 5210
                  1650 Market Street
                  Philadelphia, PA 19103

                  Attention:  Alan Halpern

or at such other address as any of the above may have furnished to all of the
other parties in writing by certified or registered mail, return receipt
requested in the manner specified in this Section 10.

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         11. Severability. If any term, provision, covenant or restriction of
this Agreement is held by a court of competent jurisdiction to be invalid, void
or unenforceable, the remainder of the terms, provisions, covenants and
restrictions of this Agreement shall remain in full force and effect and shall
in no way be affected, impaired or invalidated.

         12. Successors and Assigns; Assignment. This Escrow Agreement shall be
binding upon and shall inure to the benefit of and be enforceable by the heirs,
executors, administrators, personal representatives, successors and assigns of
the parties hereto; provided, however, that none of the Soft Plus Shareholder
Agent, Acquisition or Escrow Agent shall assign this Agreement without first
obtaining the prior written consent of the others and giving written notice
thereof to Escrow Agent; provided, further, however that any corporation or
association into which the Escrow Agent in its individual capacity may be merged
or converted or with which it may be consolidated, or any corporation or
association resulting from any merger, conversion or consolidation to which the
Escrow Agent in its individual capacity shall be a party, or any corporation or
association to which all or substantially all the corporate trust business of
the Escrow Agent in its individual capacity may be sold or otherwise
transferred, shall be the Escrow Agent under this Escrow Agreement without
further act.

         13. Modifications. This Agreement may not be altered or modified
without the express written consent of the parties hereto. No course of conduct
shall constitute a waiver of any of the terms and conditions of this Escrow
Agreement, unless such waiver is specified in writing, and then only to the
extent so specified. A waiver of any of the terms and conditions of this Escrow
Agreement on one occasion shall not constitute a waiver of the other terms of
this Escrow Agreement, or of such terms and conditions on any other occasion.

         14. Governing Law. This Agreement shall be governed by and construed
under the laws of Pennsylvania without reference to conflict of law principles.

         15. Consent to Jurisdiction and Service. The parties hereby absolutely
and irrevocably consent and submit to the jurisdiction of the courts of
Pennsylvania and of any federal court located in Pennsylvania in connection with
any actions or proceedings brought against Acquisition and the Soft Plus
Shareholder Agent by the Escrow Agent arising out of or relating to this Escrow
Agreement. In any such action or proceeding, Acquisition and the Soft Plus
Shareholder Agent hereby absolutely and irrevocably waive personal service of
any summons, complaint, declaration or other process and hereby absolutely and
irrevocably agree that the service thereof may be made by certified or
registered first-class mail directed to Acquisition and the Soft Plus
Shareholder Agent, as the case may be, at their respective addresses in
accordance with Section 10 hereof.

         16. Force Majeure. No party hereto shall be responsible for delays or
failures in performance resulting from acts beyond its control. Such acts shall
include but not be limited to acts of God, strikes, lockouts, riots, acts of
war, epidemics, governmental regulations superimposed after the fact, fire,
communication line failures, computer viruses, power failures, earthquakes or
other disasters.

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         17. Reproduction of Documents. This Agreement and all documents
relating thereto, including, without limitation, (a) consents, waiver and
modifications which may hereafter be executed, and (b) certificates and other
information previously or hereafter furnished, may be reproduced by any
photographic, photostatic, microfilm, optical disk, micro-card, miniature
photographic or other similar process. The parties agree that any such
reproduction shall be admissible in evidence as the original itself in any
judicial or administrative proceeding, whether or not the original is in
existence and whether or not such reproduction was made by a party in the
regular course of business, and that any enlargement, facsimile or further
reproduction of such reproduction shall likewise be admissible in evidence.

         18. Counterparts. This Agreement may be executed in several
counterparts, each of which shall be an original, but all of which together
shall constitute one and the same agreement.

         19. Headings. The section headings herein are for convenience only and
shall not affect the construction thereof.

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         IN WITNESS WHEREOF, the parties hereto have executed this Escrow
Agreement on the day and year first above written.

                                FIRST ACQUISITION CO.
Attest:

_____________________________  By:____________________________________________
Name: Philip L. Calamia           Name: Stephen T. Zarrilli
Title: Treasurer                  Title: President

                                Mohan Uttarwar], as agent and attorney-in-fact
                                for the Soft Plus Shareholder Agents
Witness:

____________________            ______________________________________________

                                THE CHASE MANHATTAN TRUST COMPANY,
                                NATIONAL ASSOCIATION
Attest:

____________________            By:____________________________________________
Name:                              Name:
Title:                             Title:

                                SOFT PLUS, INC.
Attest:

____________________            By:____________________________________________
Name:                              Name:
Title:                             Title:

                                       10<PAGE>

                     LOCK-UP AND MARKET-OUT LETTER AGREEMENT

The Board of Directors
U.S. Interactive, Inc.
2012 Renaissance Boulevard
King of Prussia, PA 19406

Ladies and Gentlemen:

         In connection with the merger of Soft Plus, Inc., a California
corporation and First Acquisition Co., a Delaware corporation and a wholly owned
subsidiary of U.S. Interactive, Inc., a Delaware corporation ("USI"), pursuant
to a certain Agreement and Plan of Merger dated February 1, 2000 (the "Merger
Agreement"), the undersigned has received _________________________ unregistered
shares of USI Common Stock, par value $0.001 per share (the "Shares").

1.       In consideration of the execution of the Merger Agreement, and for
         other good and valuable consideration, the undersigned hereby
         irrevocably agrees that, without the prior written consent of USI, the
         undersigned will not, directly or indirectly, (1) offer for sale, sell,
         pledge, or otherwise dispose of (or enter into any transaction or
         device that is designed to, or could be expected to, result in the
         disposition by any person at any time in the future of) any Shares
         (including, without limitation, Shares that may be deemed to be
         beneficially owned by the undersigned in accordance with the rules and
         regulations of the Securities and Exchange Commission), or securities
         convertible into or exchangeable for shares of USI Common Stock
         (collectively, the "Restricted Securities"), owned by the undersigned
         in connection with the closing of the Merger Agreement, or (2) enter
         into any swap or other derivatives transaction that transfers to
         another, in whole or in part, any of the economic benefits or risks of
         ownership of such Restricted Securities, whether any such transaction
         described in clause (1) or (2) above is to be settled by delivery of
         Common Stock or other securities, in cash or otherwise, for a period of
         24 months after the closing date of the transaction contemplated by the
         Merger Agreement. The foregoing shall also apply to Restricted
         Securities that are registered by USI from time to time as contemplated
         in the Merger Agreement but not otherwise sold pursuant to the terms of
         the Merger Agreement.

2.       The foregoing restriction shall lapse with respect to one-quarter of
         the Restricted Securities every six months beginning on a date six
         months following the closing date of the transaction contemplated by
         the Merger Agreement, resulting in the restriction on the disposition
         of the Restricted Securities described in Paragraph 1 above to lapse
         with respect to 100% of the Restricted Securities owned or beneficially
         owned by the undersigned on the second anniversary of the closing date
         of the transaction contemplated by the Merger Agreement.

3.       The undersigned further agrees that, upon the request of USI's
         underwriters in the event USI becomes engaged in a firmly underwritten
         public offering of its Common Stock following the date hereof, any
         Restricted Securities owned or beneficially owned by the undersigned
         shall be or become subject to the restrictions on disposition described
         in Paragraph 1 for a period of time requested by such underwriters from
         the effective date of any such public offering (not to exceed six
         months) (regardless of whether such restrictions have lapsed with
         respect to any of the Restricted Securities as provided in Paragraph 2
         above); provided, however, that the obligations under this Section 3
         are conditioned upon each of the officers, directors and 1%
         shareholders of USI selling in such offering entering into and
         remaining subject to similar agreements with substantially the same
         restrictions.

<PAGE>

4.       Notwithstanding the foregoing the undersigned may make gifts of
         Restricted Securities or other securities convertible into, or
         exchangeable or exercisable for, Restricted Securities or other
         derivatives during the above-referenced lock-up and market out periods
         if the donee agrees in writing to be bound by the terms of this
         agreement for the remainder of the lock-up and market out periods.

5.       In furtherance of the foregoing, the certificate representing the
         Restricted Securities issued to me will contain a restrictive legend
         pertaining to the above limitations on resale and that transfer
         instructions will be noted on the Company's stock transfer ledger with
         respect to the Restricted Securities. USI and its Transfer Agent are
         hereby authorized to decline to make any transfer of securities if such
         transfer would constitute a violation or breach of this Lock-Up and
         Market-Out Letter Agreement.

6.       The undersigned understands that execution of this Lock-Up and
         Market-Out Letter Agreement is a condition to closing of the
         transaction contemplated by the Merger Agreement.

         The undersigned hereby represents and warrants that the undersigned has
full power and authority to enter into this Lock-Up and Market-Out Letter
Agreement. Any obligations of the undersigned shall be binding upon the heirs,
personal representatives, successors and assigns of the undersigned.

                                           Very truly yours,

                                           ____________________________________

Date:  _______________

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