Document:

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                                                                   EXHIBIT 10.25

                                    FORM OF
                            STOCK PLEDGE AGREEMENT

     STOCK PLEDGE AGREEMENT (this "Pledge Agreement") dated as of the ___ day of
                                   ----------------
_______, ____, made by ________________, an individual (the "Pledgor"), in favor
                                                             -------
of ESPERION THERAPEUTICS, INC., a Delaware corporation (the "Lender").
                                                             ------

                             W I T N E S S E T H:
                             - - - - - - - - - -

     WHEREAS, the Lender has agreed to make a loan (the "Loan") to the Pledgor
                                                         ----
on the terms set forth in and subject to a Promissory Note dated as of even date
herewith by and between the Lender and the Pledgor (as same may be amended,
supplemented or otherwise modified from time to time, the "Note"); and
                                                           ----

     WHEREAS, it is a condition precedent to the obligation of the Lender to
make the Loan that the Pledgor execute and deliver this Pledge Agreement
granting to the Lender as security for the Loan and the Pledgor's obligations
under the Note, a first priority security interest in certain of the Pledgor's
property.

     NOW THEREFORE, in construction of the premises and to induce the Lender to
make the Loan and for other valuable consideration, the Pledgor hereby agrees
with the Lender as follows:

        1.   Definitions:  When used herein, the terms set forth below shall be
             -----------
defined as follows:

        (a)  "Obligations" means any and all indebtedness, obligations and
              -----------
liabilities of the Pledgor to the Lender of any kind or nature arising out of or
in connection with the Note and/or this Pledge Agreement.

        (b)  "Collateral" means the Pledgor's capital stock interests in the
              ----------
Lender, whether now owned or hereafter acquired, including, but not limited to,
_______ shares of Common Stock, $.001 par value per share, of the Lender
represented by stock Certificate No. ___, together with all certificates,
options, rights, dividends or other distributions in respect thereof, and any
and all proceeds of the foregoing.

        (c)  "Event of Default" shall have the meaning given it in the Note.
              ----------------

        2.   Pledge of Collateral:  To secure the prompt and complete payment
             --------------------
and performance when due (whether at the stated maturity, by acceleration or
otherwise) of the Obligations, the Pledgor hereby pledges, assigns, and
transfers to the Lender, grants to the Lender a continuing security interest in
and to, all of the Pledgor's right, title and interest in and to the Collateral.
The Pledgor hereby delivers to the Lender the certificate evidencing the
Collateral. Concurrently with the delivery to the Lender of the certificate
representing the Collateral, the Pledgor has delivered an undated stock power
covering such certificate, duly executed in blank by the Pledgor.

        3.   Representations, Warranties and Covenants:  The Pledgor hereby
             -----------------------------------------
represents, warrants and covenants that (a) he shall defend, at his cost, any
action,  proceeding or claim affecting the Collateral, (b) he is the sole
legal, record and beneficial owner of, and has good and valid title to, the

<PAGE>

Collateral, and that the Collateral is and will continue to be free and clear of
all security interests, liens and encumbrances and rights and claims of others
except in favor of the Lender, (c) he has the power and authority to execute,
deliver and perform the Note and this Pledge Agreement, (d) he shall promptly
pay all taxes, assessments, fees and other public or private charges when levied
or assessed against any Collateral, the Note or this Pledge Agreement, (e) he
has duly executed and delivered the Note and this Pledge Agreement, and the Note
and this Pledge Agreement constitute the legal, valid and binding obligations of
the Pledgor, enforceable against the Pledgor in accordance with their respective
terms, and (f) all of the shares of capital stock constituting a part of the
Collateral have been duly and validly issued and are fully paid and non-
assessable.

        4.   Limitations on Duties of the Lender: The Lender shall be under no
             -----------------------------------
duty to (a) collect or protect the Collateral or any proceeds thereof or give
any notice with respect thereto, (b) preserve the right of the Pledgor with
respect to the Collateral against prior parties, (c) preserve rights against any
parties to any instrument or chattel paper that may be a part of the Collateral,
(d) sell or otherwise realize upon the Collateral, or (e) seek payment of the
Obligations from any particular source. Without limiting the generality of the
foregoing, the Lender shall not be obligated to take any action in connection
with any conversion, call, redemption, retirement, or any other event relating
to any of the Collateral.

        5.   Voting Rights; Distributions: So long as no Event of Default has
             ----------------------------
occurred, the Pledgor shall be entitled to (a) excercise all voting, consensual,
managerial and other rights in connection with the Collateral, and (b) take
control of, receive and retain all distributions made by the Lender in
connection with the Collateral.

        6.   Remedies: Upon the occurrence of an Event of Default, all
             --------
Obligations shall immediately become due and payable without demand or notice of
any kind, and the Lender may, in addition to such other remedies provided
herein, in the Note or by law or otherwise (a) transfer the whole or any part of
the Collateral into the name of the Lender or the name of its nominee and
exercise all voting, consensual, managerial and other rights in connection with
the Collateral, (b) take control of, receive and retain all distributions made
by the Lender in connection with the Collateral, (c) bring legal action against
the Pledgor without notice, and (d) take possession of the Collateral and sell,
assign and/or give options to purchase all on any part thereof in one or more
parcels upon any exchange or at public or private sale at the option of the
Lender at any time or times, without advertisment or demand upon or notice to
the Pledgor or any other person or entity (all of which are hereby waived),
except such notice as is required by applicable statute and cannot be waived,
for cash, upon credit or for other property, for immediate or future delivery,
at such price or prices and upon such terms as the Lender shall, in its sole
discretion, deem commercially reasonable, with the right on the part of the
Lender or its nominee to become the purchaser thereof at any such sale (unless
prohibited by statute), free from any equity of redemption and all other claims,
and, after deducting all legal and other expenses for maintaining or selling the
Collateral and all reasonable attorneys' fees, legal or other expenses for
collection, sale and delivery, to apply the residue to the proceeds of such sale
or sales to pay (or hold as a reserve against) all Obligations. The Lender shall
have the right to take any action it deems appropriate without the necessity of
resorting to any Collateral securing the Note. Any notice to be given to the
Pledgor shall be sufficiently served for all purposes if placed in the mail
addressed to or left upon the premises at the address noted in section 8(i)
below, and all time for service or delivery of any notice in accordance with any
statute shall be deemed to be commercially reasonable if sent or served five (5)
days before the event. Notwithstanding the foregoing, the Pledgor recognizes
that the Lender may be unable to effect a public sale of all or a part of the
Collateral and may be compelled to resort to one or more private sales to a
restricted group of purchasers who will be obligated to agree, among other
things, to acquire the Collateral for their own account, for investment and not
with a view to the distribution or resale thereof.

                                       2

<PAGE>

The Pledgor acknowledges that any such private sales may be at prices and on
terms less favorable to the Lender than those of public sales, and agrees that
such private sales shall be deemed to have been made in a commercially
reasonable manner and that the Lender has no obligation to delay the sale of any
Collateral to permit the Lender to register it for public sale under the
Securities Act of 1933. Notwithstanding anything contained herein to the
contrary, the Lender shall only be entitled to proceed against the Collateral
and enforce its rights therein upon the occurrence of an Event of Default and,
in such case, only to the extent of the outstanding Obligations.

        7.   Attorney-in-Fact: The Pledgor hereby appoints the Lender, with full
             ----------------
power of substitution, as its true and lawful attorney-in-fact with full
irrevocable power and authority in the place and stead of the Pledgor and in the
name of the Pledgor or in its own name, from time to time in the Lender's
discretion, for the purpose of carrying out the terms of this Pledge Agreement,
after the occurrence of an Event of Default, to take any and all appropriate
action and to execute any and all documents and instruments which may be
necessary or desirable to accomplish the purposes of this Pledge Agreement.

        8.   Miscellaneous: This Pledge Agreement is subject to the following
             -------------
additional provision:

           (a)   The Pledgor hereby forever waives presentment, demand, protest,
notice of protest and notice of dishonor of the Note and the indebtedness
evidenced thereby and this Pledge Agreement. No delay or failure by the Lender
in the exercise of any right or remedy under the Note or this Pledge Agreement
shall constitute a waiver thereof, and no single or partial exercise by the
Lender of any right or remedy under the Note or this Pledge Agreement shall
preclude other or further exercise thereof or the exercise of any other right
or remedy. No modification or waiver of the provisions hereof shall be effective
unless in writing and signed by the Lender, nor shall any waiver be applicable
except in the specific instance or matter for which given.

           (b)   If any provision of this Pledge Agreement is invalid or
unenforceable in any jurisdiction such provision shall, as to such jurisdiction,
be ineffective to the extent of such invalidity or unenforceability, but the
foregoing shall not render invalid or unenforceable in such jurisdiction the
remainder of this Pledge Agreement or the remainder of such provision or affect
the validity or unenforceability of any provision of this Pledge Agreement in
any other jurisdiction.

           (c)   The Pledgor hereby agrees to pay, indemnify and hold the Lender
harmless from and against all expenses, liabilities and costs, including,
without limitation, reasonable attorney's fees and expenses, incurred by the
Lender in the protection, exercise or enforcement of its interests, rights,
powers or remedies under the Note and hereunder.

           (d)   This Pledge Agreement shall be binding upon and unsure to the
benefit of the Lender and the Pledgor, and their respective heirs, executors,
personal respectives, successors and permitted assign, provided the Pledgor may
not assign any of his rights or obligations hereunder without the prior written
consent of the Lender.

           (e)   This Pledge Agreement shall be governed by and construed in
accordance with the laws of the State of Michigan, without giving effect to the
principles of conflicts of law thereof. The Pledgor hereby submits himself for
the sole purpose of this Pledge Agreement and any controversy arising hereunder
to the exclusive jurisdiction of the courts in the State of Michigan, and waives
any objection (on the grounds of lack of jurisdiction or forum non conveniens,
or otherwise) to the exercise of such jurisdiction over him by any court in the
State of Michigan.

                                       3
<PAGE>

          (f) The section headings are included for convenience only and shall
not be deemed to be part of this Pledge Agreement.

          (g) At any time and from time to time, upon the request of the Lender,
at the sole expense of the Pledgor, the Pledgor will promptly and duly execute
and deliver such further instruments and documents and take such further action
as the Lender may reasonably request for the purpose of obtaining and preserving
the full benefits of the Note and this Pledge Agreement and of the rights and
powers therein and herein granted, including, without limitation, for the
purpose of perfecting the Lender's security interest in the Collateral.

          (h) This Pledge Agreement and the grant of the security interest
contained herein is for collateral purposes only and the Lender shall not, by
virtue of this Pledge Agreement, by its receipt of distributions on account of
the Collateral, or by its exercise of any rights hereunder, be deemed to have
any liability for the debts, obligations or liabilities of the Pledgor on
account of the Collateral.

          (i) All notices, requests and demands to or upon the Pledgor or the
Lender under or in connection with this Pledge Agreement or the Note to be
effective shall be in writing and shall be sent by reputable overnight courier
service or certified mail, return receipt requested, to the following addresses
(or such other address as shall be designated in writing to the other party by
written notice):

          If to the Pledgor:

          If to the Lender:

          with a copy to:

      IN WITNESS WHEREOF, the pledgor has duly executed and delivered this
Pledge Agreement the day and year first above written.

WITNESS:                                  PLEDGOR:

-------------------------                 --------------------------
                                           Name:

                                       4<PAGE>   1
                                                                 Exhibit 10.20.1

                                   AGREEMENT

       THIS AGREEMENT (this "Agreement") is made as of January 28, 2000 by and
among Tomar Studios, Inc., a New York corporation having an address at 601 West
26th Street, 13th Floor, New York, New York 10001 ("Tomar"); Screaming Media.com
Inc., a Delaware corporation having an address at 601 West 26th Street, 13th
Floor, New York, New York 10001, ("Screaming Media"), and Jay Chiat, an
individual with a business address c/o Screaming Media.com Inc. 601 West 26th
Street, 13th Floor, New York, New York 10001 ("Guarantor").

       In consideration of the mutual covenants, representations, warranties and
agreements hereinafter set forth, and intending to be legally bound hereby,
Tomar, Screaming Media, and Guarantor agree as follows:

                                    ARTICLE I

                                     CLOSING

       1.01 DELIVERY OF AGREEMENTS AND PAYMENTS AT CLOSING. The parties agree
that they shall enter into and deliver agreements and other documents (the
"Closing Documents") and make payments at or as of the Closing (as defined in
Section 1.02 hereof), as follows:

              (a) Tomar and Screaming Media shall enter into and deliver a
       Sublease (the "Sublease") for the premises known as Suite SE1-5 on the
       13th floor of the building known as 601 West 26th Street in the Borough
       of Manhattan, City of New York (the "Sublease Premises") in the form
       annexed hereto as Exhibit A. Screaming Media shall make any payments and
       deposits required on execution of the Sublease as provided for in the
       Sublease.

              (b) Guarantor shall enter into and deliver a Guaranty relating to
       the Sublease Premises in the form annexed hereto as Exhibit B (the
       "Guaranty").

              (c) Screaming Media shall enter into and deliver a Common Stock
       Purchase Warrant (the "Warrant") in the form annexed hereto as Exhibit C,
       provided that if the Warrant Price and number of Shares purchasable (each
       as defined in the Warrant) would have been adjusted pursuant to Section 8
       of the Warrant on or before the Closing Date if the Warrant had been
       issued on the date of this Agreement, then the Warrant Price, number of
       Shares purchasable, and

<PAGE>   2

       Put Price and maximum Current Market Price for the Put contained in
       Section 7.2 of the Warrant shall each be adjusted as provided for in
       Section 8 of the Warrant.

              (d) Tomar shall deliver a Landlord's Waiver and Non-Disturbance
       Agreement ("Landlord's Waiver") executed by the Landlord (as defined in
       the Sublease) in the form annexed hereto as Exhibit D, or such other form
       as provided in Section 4.02 hereto, and Tomar and Screaming Media shall
       enter into and deliver the Landlord's Waiver.

              (e) Screaming Media shall pay Five Hundred Thousand Dollars
       ($500,000.00) in immediately available funds by certified check, official
       bank check, or wire transfer as directed by Tomar.

              (f) Tomar and Screaming Media shall execute a New York City Real
       Property Transfer Tax return and such other tax returns or reporting
       documents as may be required by law. Each party shall pay such transfer
       taxes, excise taxes, and other taxes or fees as may be imposed by law on
       that party as primary obligor. Each party agrees to indemnify the others
       for any taxes due from that party paid by another party.

              (g) Tomar shall execute and deliver to the Landlord an indemnity
       letter ("Tomar Indemnity") in the form in the form annexed hereto as
       Exhibit F, or such other form as may be agreed to by the parties.

              (h) Screaming Media execute and deliver to the Landlord an
       acknowledgment letter ("Screaming Media Acknowledgment") in the form
       annexed hereto as Exhibit G, or such other form as may be agreed to by
       the parties.

       1.02 CLOSING DATE. The delivery of agreements and payments referred to in
Section 1.01 (the "Closing") shall take place on February 1, 2000 at 10:00 am.
(the "Initial Closing Date") at the offices of Bennett & Samios, LIP, 845 Third
Avenue, 21st Floor, New York, New York 10022, or at such other place as may be
agreed upon by the parties, provided, however that if the condition to Closing
contained in Section 4.01 (the "Closing Condition") has not been satisfied by
the Initial Closing Date, the closing shall take place within three business
days of the satisfaction of the Closing Condition.

                                       2
<PAGE>   3

       1.03 CONSIDERATION. The parties agree that the consideration for each
party's performance hereunder, covenants, representations, warranties and
agreements entered into, or made herein and at the Closing (including all
payments to be made at the Closing) shall be each other party's performance,
covenants, representations, warranties and agreements, and no part of the
performance, covenants, representations, warranties and agreement made herein or
at the Closing shall be considered prepaid or advance rent.

                                   ARTICLE II

                         REPRESENTATIONS AND WARRANTIES
                                    OF TOMAR

       Tomar represents and warrants to Screaming Media that as of the date
hereof and as of the Closing:

       2.01 ORGANIZATION AND GOOD STANDING. Tomar is a corporation duly
organized, validly existing and in good standing under the laws of the State of
New York.

       2.02 AUTHORIZATION, COMPLIANCE WITH OTHER INSTRUMENTS AND LAW. Tomar has
full corporate power and authority to enter into this Agreement and the Closing
Documents, to consummate the transactions contemplated hereby and thereby and to
perform its obligations hereunder and thereunder, subject to the consent of the
Landlord under the Sublease. The execution, delivery and performance of this
Agreement and the Closing Documents and the consummation of the transactions
contemplated hereby and thereby have been duly authorized by all necessary
corporate action on the part of the shareholders and the board of directors of
Tomar. This Agreement and each Closing Document to which Tomar is a party has
been or will at the Closing, be duly executed and delivered by Tomar, and is, or
when executed and delivered at the Closing will be, a valid and binding
obligation of Tomar enforceable against Tomar in accordance with its terms,
subject to bankruptcy, insolvency, fraudulent transfer, reorganization,
moratorium and similar laws of general applicability, relating to or affecting
creditors' rights and to general equity principles. The execution, delivery and
performance of this Agreement and the Closing Documents will not conflict with
or result in a breach or violation of any provision of the Certificate of
Incorporation or By-Laws (or similar corporate organizational documents) of
Tomar or of any order, writ, injunction, judgment, decree, law, statute, rule or
regulation to which Tomar is a party or by which

                                       3
<PAGE>   4

Tomar or its assets may be bound or affected. All necessary authorizations of
the transactions contemplated by this Agreement required to be obtained by Tomar
from any Federal, state, local or foreign government or agency shall have been
obtained prior to the Closing, and any filings, notifications or disclosures
required bylaw or regulation of any such government or agency shall have been
made in proper form. Screaming Media shall cooperate with Tomar with respect to
the aforesaid filings, notifications or disclosures to the extent necessary to
obtain said authorizations.

       2.03 SUBLEASE. Tomar is the tenant under that certain Agreement of Lease,
dated December 30, 1998, between 601 West Associates LLC, as landlord
("Landlord"), and Tomar (the "Agreement of Lease") as supplemented by that
certain letter agreement, dated December 29, 1998, between Landlord and Tomar,
and as modified by that certain Lease Modification and Extension Agreement,
dated as of April 28, 1999, between Landlord and Tomar (the "Modification"),
(the Agreement of Lease, as so supplemented and so modified, the "Master
Lease"), with regard to the Sublease Premises. The Master Lease is unmodified
(except for such modifications effected by the Landlord's Waiver) and in full
force and effect. All rent and other charges (including additional rent) due and
payable under the Master Lease have been paid. There are no defaults by Tomar as
tenant under the Master Lease.

                                   ARTICLE III

                         REPRESENTATIONS AND WARRANTIES
                               OF SCREAMING MEDIA

       Screaming Media represents and warrants to Tomar that as of the date
hereof and as of the Closing:

       3.01 ORGANIZATION AND GOOD STANDING. Screaming Media is a corporation
duly organized, validly existing and in good standing under the laws of the
State of Delaware, and is duly qualified to do business in the State of New
York.

       3.02 AUTHORIZATION, COMPLIANCE WITH OTHER INSTRUMENTS AND LAW. Screaming
Media has full corporate power and authority to enter into this Agreement and
the Closing Documents, to consummate the transactions contemplated hereby and
thereby and to perform its obligations hereunder and thereunder. The. execution,
delivery and performance of this Agreement and the Closing Documents and the
consummation of the transactions contemplated hereby and thereby have been duly

                                       4
<PAGE>   5

authorized by all necessary corporate action on the part of the shareholders and
the board of directors of Screaming Media. This Agreement and each Closing
Document to which Screaming Media is a party has been or will at the Closing, be
duly executed and delivered by Screaming Media, and is, or when executed and
delivered at the Closing will be, a valid and binding obligation of Screaming
Media enforceable against Screaming Media in accordance with its terms, subject
to bankruptcy, insolvency fraudulent transfer, reorganization, moratorium and
similar laws of general applicability, relating to or affecting creditors'
rights and to general equity principles. The execution, delivery and performance
of this Agreement and the Closing Documents will not conflict with or result in
a breach or violation of any provision of the Certificate of Incorporation or
By-Laws (or similar corporate organizational documents) of Screaming Media or of
any order, writ, injunction, judgment, decree, law, statute, rule or regulation
to which Screaming Media is a party or by which Screaming Media or its assets
may be bound or affected. All necessary authorizations of the transactions
contemplated by this Agreement required to be obtained by Screaming Media from
any Federal, state, local or foreign government or agency shall have been
obtained prior to the Closing, and any filings, notifications or disclosures
required by law or regulation of any such government or agency shall have been
made in proper form. Tomar shall cooperate with Screaming Media with respect to
the aforesaid filings, notifications or disclosures to the extent necessary to
obtain said authorizations.

       3.03 CAPITALIZATION. The capitalization of Screaming Media is accurately
set forth on Schedule 3.02 hereto.

                                   ARTICLE IV

                        CLOSING CONDITION AND TERMINATION

       4.01 CLOSING CONDITION. The respective obligations of each party to
effect the transactions contemplated by this Agreement shall be subject the
condition that the Landlord enter into and deliver the Landlord's Waiver in the
form annexed hereto as Exhibit D, or such other form as may be reasonably agreed
to by the parties, provided, however, that if Landlord shall object to numbered
paragraphs 7 and/or 8 of the Landlord's Waiver in the form annexed hereto as
Exhibit D, the parties shall agree to enter into a Landlord's Waiver excluding
numbered paragraphs 7 and/or 8 and to otherwise effect the transactions
contemplated by this Agreement.

                                       5
<PAGE>   6

       4.02 SUBMISSION TO LANDLORD. Tomar agrees to submit this Agreement and
the form of Sublease, the form of the Tomar Indemnity and the form of the
Screaming Media Acknowledgment to Landlord for approval in accordance with the
Master Lease promptly after the execution of this Agreement Tomar agrees to use
commercially reasonable efforts to satisfy the Closing Condition, but shall not
be required to expend any monies to do so.

       4.03 TERMINATION. In the event that the Closing Condition is not
satisfied by March 31, 2000, any party may terminate this Agreement by notice to
the other parties, provided that the Closing Condition is not satisfied prior to
the notice of termination. On termination pursuant to this Section 5.03: each
party shall return all money, securities, or other instruments received from any
other party, and upon the return of such money, securities, or other
instruments, if any, this Agreement and any Closing Documents entered into by
the parties shall be deemed terminated and of no further force or effect and no
party shall have any further rights against, or obligations or liabilities to,
any other by reason of this Agreement 'or any Closing Document.

                                    ARTICLE V

                                  MISCELLANEOUS

       5.01 BINDING EFFECT. This Agreement shall be binding upon and inure to
the benefit of the parties hereto and their respective successors and permitted
assigns.

       5.02 NO ASSIGNMENT. This Agreement may not be assigned by any party
hereto without the prior written consent of the other parties. Any attempted or
purported assignment by either party other than in accordance with this Section
5.02 shall be null and void.

       5.03 COUNTERPARTS. This Agreement may be executed in any number of
counterparts, and by any party on separate counterparts, each of which as so
executed and delivered shall be deemed an original but all of which together
shall constitute one and the same instrument, and it shall not be necessary in
making proof of this Agreement as to any party hereto to produce or account for
more than one such counterpart executed and delivered by such party.

       5.04 GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the internal substantive laws of the State of New York (without

                                       6
<PAGE>   7

regard to conflict of laws principles) as to all matters, including but not
limited to matters of validity, construction, effect, performance and remedies.

       5.05 SUITS IN NEW YORK. The parties agree that any action or proceeding
relating in any way to this Agreement or the Closing Documents or the
transactions contemplated hereby and thereby shall be brought and enforced in
the Supreme Court of the State of New York for the County of New York or in the
United States District Court for the Southern District of New York, and the
parties hereby waive any objection to jurisdiction or venue in any such
proceeding commenced in or removed to such courts.

       5.06 NOTICES. Any notice required or permitted to be given hereunder
shall be in writing and may be given by telecopier, by certified mail, return
receipt requested, or by personal delivery (including by reputable overnight
courier service such as Federal Express). Any notice given by telecopier shall
be deemed given when confirmation of transmission has been received, provided
that if such notice is transmitted at any time other than during Normal Business
Hours (as such term is defined below) such notice shall be deemed given at the
next commencement of Normal Business Hours. Any notice given by certified mail,
return receipt requested, shall be deemed given on the fourth (4th) day after
the date upon which it is mailed, postage paid. Any notice given by personal
delivery shall be deemed given when delivered, provided that if such notice is
delivered at any time other than during Normal Business Hours such notice shall
be deemed given at the next commencement of Normal Business Hours. As used in
this Paragraph 16, the term "Normal Business Hours" means the hours between 9:00
am. and 4:30 p.m. in the time zone covering the recipient's address as set forth
below, Monday through Friday, exclusive of any day that is not a Business Day
(the term "Business Day" meaning any day other than a day when banks in the
State of New York are required or permitted to be closed). Any notice given
hereunder shall be given to party indicated, at the following address or
telecopier number (and whether to an address or a telecopier number, to the
attention of the person indicated):

       (a) TO TOMAR. If to Tomar addressed to:

       Prior to the Closing:

           Tomar Studios, Inc.
           601 West 26th Street, l3th Floor
           New York, New York

                                       7
<PAGE>   8

           Attention, Tom Marrazza, President
           Telecopier: 212-627-1987

       From and after the Closing:

           Tomar Studios, Inc.
           c/o Tom Marrazza
           1 Irving Place, Apt. V9A
           New York, New York  10003

       with a copy to:

           Bennett & Samios, LLP
           845 Third Avenue, 2lst Floor
           New York, New York  10022
           Attention: Terrence M.  Bennett,  Esq.
           Telecopier: 212-753-6262

       (b) TO SCREAMING MEDIA. If to Screaming Media addressed to:

           Screaming Media.com Inc.
           601 West 26th Street, l3th Floor
           New York, New York  10001
           Attention: William P.  Kelly, General Counsel
           Telecopier (212) 422-1761

       with a copy to:

           Carter, Ledyard & Milburn
           2 Wall Street
           New York, New York  10005
           Attention: Alan J.  Bernstein, Esq.
           Telecopier No.:  212-732-3232

       (c) TO GUARANTOR. If to Guarantor addressed to:

           Jay Chiat
           c/o Screaming Media.com Inc.
           601 West 26th Street, 13th Floor

                                       8
<PAGE>   9

           New York, New York  10001
           Telecopier: (212) 422-1761

       with a copy to:

           Carter, Ledyard & Milburn
           2 Wall Street
           New York, New York  10005
           Attention: Alan J.  Bernstein, Esq.
           Telecopier No.: 212-732-3232

       Any party may change its address for notices as set forth above by notice
to such effect to the other party given in the manner provided in this Section
5.06.

       5.07 AMENDMENT AND MODIFICATION. This Agreement may be amended, modified
or supplemented only by a written instrument executed by all of the parties
hereto.

       5.08 WAIVER OF COMPLIANCE. Except as otherwise provided in this
Agreement, any failure of any of the parties to comply with any obligation,
covenant agreement or condition herein may be waived by the party or parties
entitled to the benefits thereof only by a written instrument signed by the
party or parties granting such waiver, but any such waiver or the failure to
insist upon strict compliance with any obligation, covenant, agreement or
condition herein, shall not operate as a waiver of, or estoppel with respect to,
any subsequent or other failure or breach.

       5.09 Interpretation. The article and section headings contained in this
Agreement are solely for the purpose of reference, are not part of the agreement
of the parties and shall not in any way affect the meaning or interpretation of
this Agreement. As used in this Agreement, the term "person" shall mean and
include an individual, a partnership, a joint venture, a corporation, a trust,
an unincorporated organization or a governmental entity or any department or
agency thereof. When used herein, the masculine, feminine or neuter gender and
the singular or plural number shall each be deemed to include the others
whenever the context so indicates or permits.

       5.10 ENTIRE AGREEMENT. This Agreement and the other Closing Documents,
including the schedules, exhibits, documents, certificates and instruments
referred to herein and therein, embody the entire agreement and understanding of
the parties hereto in respect of any transactions contemplated by this Agreement
and the Closing

                                       9
<PAGE>   10

Documents and supersede all prior agreements and understandings among the
parties with respect thereto.

       5.11 SEVERABILITY. In the event that any provision of this Agreement,
including any sentence, clause or part hereof, shall be deemed contrary to law
or invalid or unenforceable in any respect by a court of competent jurisdiction,
the remaining provisions shall remain in full force and effect to the extent
that such provisions can still reasonably be given effect in accordance with the
intentions of the parties, and any invalid and unenforceable provisions shall be
deemed, without further action on the part of the parties, modified, amended and
limited solely to the extent necessary to render the same valid and enforceable.

                                                      [SIGNATURE PAGE TO FOLLOW]

                                       10
<PAGE>   11

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

                                    TOMAR STUDIOS, INC.

                                    By:     /s/ Tom Marraza
                                        -------------------------------
                                    Name:
                                    Title:  President

                                    SCREAMING MEDIA.COM INC.

                                    By:     /s/ Jay Chiat
                                        -------------------------------
                                    Name:
                                    Title: Chairman

                                    JAY CHIAT

                                         /s/ Jay Chiat
                                        -------------------------------

                                       11
<PAGE>   12

                                  SCHEDULE 3.03

                     Screaming Media.com Inc. Capitalization

                             as of January 28, 2000

Series A Preferred Stock                     1,527,085 shares
       (each Series A Preferred Share is currently convertible into 2 shares of
       Common Stock)

Series B Preferred Stock                     2,678,572 shares
       (each Series B Preferred Share is currently convertible into 2 shares of
       Common Stock)

Common Stock                                 9,246,562 shares

Employees, advisors and directors hold options allowing them to purchase up to
       3,550,388 shares of Common Stock

Carter, Ledyard & Milburn holds a warrant allowing it to purchase up to 14,286
       shares of Common Stock

Deutsche Bank Securities, Inc.  holds a warrant allowing it to purchase up to
       241,070 shares of Common Stock

                                       12
<PAGE>   13

                                                                       Exhibit A

                                       13
<PAGE>   14

                                    SUBLEASE

       This SUBLEASE made as of January [___], 2000 (this "Sublease") by and
between Tomar Studios, Inc., a New York corporation having an address at 601
West 26th Street 13th Floor, New York, New York 10001, as sublandlord
("Subland1ord") and Screaming Media.com, Inc. a Delaware corporation having an
address at 601 West 26th Street, 13th Floor, New York, New York 10001, a
subtenant ("Subtenant").

       Sublandlord is a party to that certain Agreement of Lease, dated December
30, 1998, between 601 West Associates LLC, as landlord ("Landlord," which term
shall include any successor to the interests of Landlord in the Premises), and
Sublandlord, as tenant (the "Agreement of Lease"), as supplemented by that
certain letter agreement, dated December 29, 1998, between the Landlord and the
Sublandlord (the "Letter Agreement"), and as modified by that certain Lease
Modification and Extension Agreement, dated as of April 28, 1999, between
Landlord and Sublandlord (the "Modification") (the Agreement of Lease, as so
supplemented and so modified (and including the Rules and Regulations referred
to in Paragraphs 36 and 79 of the Agreement of Lease as such Rules and
Regulations may be modified from time to time as provided in Paragraph 36 of the
Agreement of Lease), the "Master Lease"), with regard to certain premises known
as Suite SE1-5 on the thirteenth (13th) floor of the building known as 601 West
26th Street in the Borough of Manhattan, City of New York (the "Building"), all
as more fully set forth in the Master Lease (such premises, the "Premises"). A
copy of the Master Lease is attached to this Sublease as Exhibit A. Sublandlord
wishes to sublease to Subtenant, and Subtenant wishes to sublease from
Sublandlord, the Premises. The Premises are appropriately as shown in Exhibit B
to this Sublease.

       Accordingly, Sublandlord and Subtenant, for themselves and their
successors and assigns, hereby agree as follows:

       1. AGREEMENT. Sublandlord subleases the Premises to Subtenant, and
Subtenant subleases the Premises from Sublandlord, upon the terms and conditions
set forth in this Sublease. Subject to the exception set forth at the beginning
of the second sentence of Paragraph 10 hereof and except for those terms,
covenants, conditions and other provisions of the Master Lease referred to in
the last sentence of Paragraph 10 hereof, the terms, covenants, conditions and
other provisions of the Master Lease (including, without limitation, the terms,
covenants, conditions and other provisions of Paragraph 52 thereof), are
incorporated into this Sublease as the agreement of Sublandlord and Subtenant as
though Sublandlord were Landlord as the landlord under

<PAGE>   15

the Master Lease and Subtenant were Sublandlord as the tenant under the Master
Lease, all as more fully set forth in Paragraph 10 hereof (provided that any
references in the Master Lease to any subtenant shall also refer to Subtenant
and any references in Paragraph 52, 53 or 69 of the Master Lease to Landlord
shall be deemed to be references to both Landlord and Sublandlord).

       2. TERM. The term of this Sublease will begin on February 1, 2000 (such
date the "Commencement Date") and will end on the day immediately preceding the
last day of the term of the Master Lease, inclusive, unless sooner terminated
pursuant to any of the terms, covenants or conditions of this Sublease or
pursuant to law. The term referred to in the preceding sentence (whether ending
on the day immediately preceding the last day of the term of the Master Lease or
sooner because sooner terminated pursuant to any of the terms, covenants or
conditions of this Sublease or pursuant to law) is referred to herein as the
"Term."

       3. RENT.

       (a) Rent. As used in this Sublease, the term "Rent" shall mean and
include all Base Rent (as defined in subparagraph (b) of this Paragraph 3, and
all Additional Rent (as defined in subparagraph (c) of this Paragraph 3).

       (b) Base Rent.

           (i) Amount. Subtenant will pay Sublandlord as base rent (the "Base
Rent") for the Premises in each year during the term hereof the annual amount
set forth on Exhibit C hereto.

           (ii) Base Rent Payable Monthly In Advance. All amounts of Base Rent
shall be payable in equal monthly installments as set forth on Exhibit C hereto
without notice, demand, offset, or counterclaim, each such installment of Base
Rent to be paid in advance on the first day of each month (except that the Base
Rent for the month beginning on the Commencement Date shall be payable
simultaneously with the execution and delivery hereof by Subtenant).

           (iii) Pro-Ration. If the Commencement Date hereof shall occur on
other than the first day of a month, any payment of Base Rent payable with
respect to any partial calendar month will be prorated on a per diem basis.

                                       2
<PAGE>   16

       (c) Additional Rent.

          (i) Items Constituting Additional Rent. Subtenant shall pay as
additional rent the following amounts (the "Additional Rent"), each such amount
of Additional Rent to be paid as and when indicated:

              (A) all amounts payable by Sublandlord to Landlord under the
Master Lease in respect of increases in "Taxes" (as defined in Paragraph 46 of
the Master Lease) over the amount of such Taxes for the tax year commencing on
July 1, 1999 and ending on June 30, 2000, any such amount to be payable by
Subtenant to Sublandlord as and when the same is payable by Sublandlord pursuant
to the Master Lease;

              (B) all amounts from time to time payable by Sublandlord under the
Master Lease in respect of the water, sprinkler and sewer charges, such amounts
to be payable as and when installments of Base Rent are payable hereunder, and
such amounts to be subject to increase in the event of any increase in the
corresponding amount payable under the Master Lease;

              (C) all amounts payable by Sublandlord for electricity furnished
to the Premises, any such amount to be payable by Subtenant to Sublandlord upon
Sublandlord's presentation to Subtenant of a copy of any bill showing any amount
payable by Sublandlord for electricity furnished to the Premises;

              (D) all amounts payable under the lease and maintenance agreement
with respect to the alarm system in the Premises, such amounts to be payable as
and when payments are required to be made by Subtenant under such agreement;
provided, that Subtenant shall have the option, by notice to such effect given
to Sublandlord not later than the sixtieth (60th) day after the Commencement
Date to elect to discontinue its use of such alarm system not later than such
sixtieth (60th) day, whereupon (provided that Subtenant in fact discontinues
such use) Subtenant shall have no further obligation to make payments with
respect to such alarm system for any period after such date of discontinuance;
and provided, further, that Subtenant hereby agrees that in the event that
Subtenant shall not give the notice referred to above in this subparagraph (D)
to Sublandlord by the sixtieth (60th) day after the Commencement Date, then
Subtenant shall be substituted for Sublandlord as a party under such agreement
and Subtenant shall assume all of Sublandlord's obligations under such
agreement;

                                       3
<PAGE>   17

              (E) all amounts payable under the lease and maintenance agreement
with respect to the telephone system in the Premises, such amounts to be payable
as and when payments are required to be made by Subtenant under such agreement;
provided, that Subtenant shall have the option, by notice to such effect given
to Sublandlord not later than the sixtieth (60th) day after the Commencement
Date, to elect to discontinue its use of such telephone system not later than
such sixtieth (60th) day, whereupon (provided that Subtenant in fact
discontinues such use) Subtenant shall have no further obligation to make
payments with respect to such telephone system for any period after such date of
discontinuance; and provided, further, that Subtenant hereby agrees that in the
event that Subtenant shall not give the notice referred to above in this
subparagraph (E) to Sublandlord by the sixtieth (60th) day after the
Commencement Date, then Subtenant shall be substituted for Sublandlord as a
party under such agreement and Subtenant shall assume all of Sublandlord's
obligations under such agreement;

              (F) all amounts payable to BellAtlantic with respect to all
BellAtlantic lines serving the Premises, such amounts to be payable as and when
payments are required to be made by Subtenant to BellAtlantic; provided, that
Subtenant shall have the option, by notice to such effect given to Sublandlord
not later than the sixtieth (60th) day after the Commencement Date, to elect to
discontinue its use of such lines not later than such sixtieth (60th) day,
whereupon (provided that Subtenant in fact discontinues such use) Subtenant
shall have no further obligation to make payments with respect to such lines for
any period after such date of discontinuance; and provided, further, that
Subtenant hereby agrees that in the event that Subtenant shall not give the
notice referred to above in this subparagraph (E) to Sublandlord by the sixtieth
(60th) day after the Commencement Date, then Subtenant shall assume all of
Sublandlord's obligations to BellAtlantic with respect to such lines; and

              (G) if, pursuant to the provisions of the Master Lease,
Sublandlord is charged for additional rent or other amounts other than the
amounts referred to above in subparagraphs.(i)(A), (B), (C), (D), (E) and (F) of
this Paragraph 3 (including, without limitation, any amounts payable in respect
of any additional services procured by Subtenant from Landlord), then, in
addition to such amounts referred to in such subparagraphs, Subtenant will be
liable for such additional rent or other amounts, such additional rent or other
amounts to be paid to the Sublandlord as Additional Rent.

          (ii) Pro-Ration. If the Commencement Date shall occur on other than
the first day of a month, any payment of Additional Rent payable with respect to
any partial calender month will be prorated on a per diem basis.

                                       4
<PAGE>   18

       4. SECURITY DEPOSIT. Subtenant has deposited with Sublandlord the sum of
One Hundred Twenty-Right Thousand Two Hundred Fifty Dollars ($128,250.00) which
Sublandlord will hold in an interest bearing account as a security deposit in
accordance with, and subject to the terms and provisions of, Paragraphs 32 and
58 of the Master Lease. In the event that Sublandlord shall at any time apply
any of such security deposit as provided herein or in the Master Lease, then,
upon the request of Sublandlord to Subtenant specifying the amount so applied,
Subtenant shall immediately deposit with Sublandlord, as an additional security
deposit, the amount so applied, so that the security deposit held by Sublandlord
shall at all times during the term hereof be equal to One Hundred Twenty-Eight
Thousand Two Hundred Fifty Dollars ($128,250.00). Sublandlord shall pay
subtenant the interest earned on such amount, less the one percent (1%)
administrative fee referred to in Section 7-103 of the General Obligations Law,
at the end of the term of the Sublease (subject to application of such interest
as provided in paragraph 2 of Section 7-103 of the General Obligations Law). In
the event that this Sublease is terminated (a) due to a default by Sublandlord
under this Sublease or (b) due to a default by Landlord or Sublandlord under the
Master Lease, then Sublandlord shall immediately return to Subtenant any
unapplied portion of the Security Deposit and any unapplied portion of prepaid
rent along with all accrued interest thereon (but less the one percent (1%)
administrative fee referred to in Section 7-103 of the General Obligations Law).
Sublandlord agrees to take such actions as may reasonably be requested by
Sublandlord to provide that all amounts of interest earned on the security
deposit (less the one percent (1%) administrative fee retained by Sublandlord)
shall be deemed to be income of the Subtenant for all income tax purposes.

       5. USE OF PREMISES. Subtenant shall use the Premises for the purposes
permitted under the Master Lease and for such additional purposes as may be
consented to by Landlord, and for no other purposes. Under no circumstances
shall Subtenant use the Premises or permit the Premises to be used for
manufacturing or for the creation, display or distribution of pornographic
materials.

       6. ACCEPTANCE OF PREMISES. Subject only to the fourth sentence of this
Paragraph 6, Subtenant acknowledges that it has inspected the Premises and that
it accepts the Premises in their present condition. Without limiting the
generality of the foregoing, Subtenant acknowledges that it or its consultants
have determined that the electrical service in the Premises will meet the
Subtenant's needs. Sublandlord makes no representation as to the suitability or
adequacy of the Building or the Premises (including, without limitation, the
electrical service in the Building or the Premises) for any use to be made of
the Premises by Subtenant. Notwithstanding the foregoing in this Paragraph 6,
but subject to the last sentence of this

                                       5
<PAGE>   19

Paragraph 6, Sublandlord hereby indemnifies Subtenant and holds Subtenant
harmless from and against, and agrees to pay for, all costs or expenses
whatsoever which Subtenant may incur in order to correct any latent defect in
work performed by Sublandlord on the Premises that caused such work not to be in
compliance with applicable law as in effect on the date upon which such work was
completed (such a latent defect, hereinafter, a "Latent Defect"); provided,
however, that such indemnity shall cover only such costs and expenses as must
necessarily be incurred in order to render the work affected by a Latent Defect
in compliance with applicable law as in effect on the date upon which such work
was completed. Nothing in the immediately preceding sentence shall be deemed to
provide for indemnification of Subtenant by Sublandlord against any costs or
expenses incurred by Subtenant (a) with respect to any Latent Defect that arises
as a result of any alternations made to the Premises by Subtenant, (b) with
respect to any Latent Defect that arises as a result of any use of the Premises
by Subtenant that differs from Sublandlord's use of the Premises, (c) in
connection with any inspection of the work performed by Sublandlord on the
Premises, (d) for attorneys' fees or expenses; (e) in connection with obtaining
any permit (including, without limitation, any building permit) or any
certificate of occupancy (except for those costs and expenses incurred in
correcting a Latent Defect so as to render the work affected thereby in
compliance with applicable law as in effect on the date upon which such work was
completed); or (f) in connection with any patent defect in any work performed by
Sublandlord.

       7. SERVICES; RESTORATION OF PREMISES AFTER FIRE OR OTHER CASUALTY.

       (a) Services. Sublandlord shall provide to Subtenant such Services as are
provided to it by Landlord pursuant to the Master Lease, to the extent of
Landlord's provision of such services from time to time. Subtenant shall have
the right, at its sole cost and expense, in its name or in the name of
Sublandlord, to take any action, as provided in the Master Lease or by law, to
enforce the rights of Subtenant as the tenant under the Master Lease as against
the Landlord and Sublandlord shall execute any and all documents which may be
reasonably necessary in order to enable Subtenant to enforce such rights under
this Paragraph 7(a).

       (b) Fire or Other Casualty. In the event that the Premises shall be
damaged by fire or other casualty, Subtenant shall look only to Landlord for
repair or restoration of the Premises, and Sublandlord shall have no liability
therefore. In the event that the occurrence of such fire or other casualty shall
give rise to a right of Sublandlord to elect to terminate the Master Lease,
Subtenant shall have the same right as against Sublandlord (but Subtenant shall
have no right to exercise such right of Sublandlord

                                       6
<PAGE>   20

under the Master Lease). In the event that the occurrence of such fire or other
casualty shall give rise to a right of Sublandlord to reoccupy the Premises upon
the restoration thereof, and Subtenant desires to repossess the Premises upon
the restoration thereof, then Subtenant shall have the right to exercise
Sublandlord's right to elect to reoccupy the Premises.

       (c) Abatement. For any period in which Rent or other charges are abated
under the Master Lease for fire, other casualty, or disruption of services, Rent
of the same type under this Sublease and charges of the same type under this
Sublease shall abate for the same period.

       8. INSURANCE. Without limiting the generality of Paragraph 1 or Paragraph
10 hereof, the Subtenant shall at all times during the term hereof carry the
policies of insurance referred to in Paragraph 53 of the Master Lease, all
references to "Landlord" in such Paragraph 53 shall be deemed to be references
to both Landlord and Sublandlord, and both the Landlord and the Sublandlord
shall be named as additional insured parties (or loss payees, if Paragraph 53
provides in a particular instance that Landlord shall be designated a loss
payee) under the policies referred to in such Paragraph 53. In addition to the
insurance referred to in such Paragraph 53, throughout the term. hereof
Subtenant shall maintain with insurers of the type described in such Paragraph
53 a policy or policies of "special form" insurance covering any alterations
made on the Premises on or after the date hereof and covering all personal
property (whether or not affixed and whether belonging to Landlord, Sublandlord
or Subtenant) located from time to time in or upon the Premises, in an amount
sufficient to cover the full replacement value of such alterations and such
property. The Landlord and the Sublandlord shall be loss payees under such
"special form" policy or policies, as their interests may appear, and any such
policy shall provide that it shall not be canceled without thirty (30) days
written notice to Landlord and Sublandlord. Upon the request of Landlord or
Sublandlord, Subtenant shall obtain waivers of subrogation with respect to any
liability or "special form" policy or policies referred to in this Paragraph 8.

       9. PERMITS AND CERTIFICATES.

       (a) Certificate of Occupancy. Subtenant acknowledges that Sublandlord has
not obtained a certificate of occupancy with respect to or in connection with
Sublandlord's alterations to, or Sublandlord's installation of leasehold
improvements in, the Premises and Subtenant agrees that Sublandlord shall have
no obligation to apply for or to obtain, or to pay any amount in connection with
Subtenant's application for or Subtenant's obtaining, any such certificate of
occupancy. Subtenant acknowledges that

                                       7
<PAGE>   21

it is familiar with the certificate of occupancy applicable to the Premises and
Subtenant agrees that Sublandlord shall have no obligation to apply for or to
obtain, or to pay any amount in connection with Subtenant's application for or
Subtenant's obtaining, any changes to such certificate of occupancy.

       (b) Air Conditioner Permit. Subtenant acknowledges that Sublandlord has
not obtained any permits in connection with Sublandlord's installation of the
air conditioning system in the Premises and Subtenant agrees that Sublandlord
shall have no obligation to apply for or to obtain, or to pay any amount in
connection with Subtenant's application for or Subtenant's obtaining, any such
permit(s).

       (c) Public Assembly Permit. Subtenant acknowledges that no public
assembly permit has been issued with respect to the Premises and Subtenant
agrees that Sublandlord shall have no obligation to apply for or to obtain or to
pay any amount in connection with Subtenant's application for or Subtenant's
obtaining, any such public assembly permit.

       10. MASTER LEASE.

       (a) Sublease and Master Lease. This Sublease is Subject and subordinate
to the Master Lease. Except for those provisions of the Master Lease that
conflict with provisions hereof, except as provided in the last sentence of this
Paragraph 10 and except that in no event shall Subtenant have any grace or other
cure period with respect to defaults in the payment of Rent or of any other
amounts payable under this Sublease, all of the terms, covenants, conditions and
other provisions of the Master Lease (including, without limitation, the terms,
covenants, conditions and other provisions of Paragraph 52 thereof) are
incorporated into this Sublease as the agreement of Sublandlord and Subtenant as
though Sublandlord were Landlord as the landlord under the Master Lease and
Subtenant were Sublandlord as the tenant under the Master Lease (provided that
any references in the Master Lease to any subtenant shall also refer to
Subtenant and any references in Paragraphs 52, 53 or 69 of the Master Lease to
Landlord shall be deemed to be referenced to both Landlord and Sublandlord); and
without limiting the generality of the foregoing, Subtenant shall make no
alterations to the Premises that would under the Master Lease require the
consent of Landlord without the prior written consent of Sublandlord, which
shall not be unreasonably withheld or delayed. Notwithstanding the foregoing,
provided that Sublandlord promptly gives Subtenant a copy of any notice from
Landlord with respect to any default under the Master Lease that relates to any
action or inaction of Subtenant and advises Subtenant of the date upon which
such notice was given to Sublandlord, then any cure period (if

                                       8
<PAGE>   22

any) afforded Subtenant with respect to such default shall be deemed to have
commenced upon the date upon which Sublandlord received such notice. Subtenant
received a copy of the Master Lease and Subtenant represents that it has read
and is familiar with the terms of the Master Lease. Subtenant will not cause or
allow to be caused any default under the Master Lease, and Subtenant will comply
with and perform all applicable terms and conditions of the Master Lease to be
complied with or performed by Sublandlord. References in specific instances
herein to the Master Lease shall not be construed as limiting the generality of
Paragraph 1 hereof or of the first or third sentences of this Paragraph 10.
Without limiting the generality of the exception set forth at the beginning of
the second sentence of this subparagraph (a), the following provisions and parts
of the Master Lease shall not be applicable to this Sublease Paragraphs 42, 43,
44 (other than the first sentence of such Paragraph 44), 45, 50 (other than
subparagraph 50.12 of such Paragraph 50), .55 or 83 of the Agreement of Lease;
the entire Letter Agreement; and the entire Modification.

       (b) Subtenant's Right to Enforce Master Lease. Except to the extent of
Subtenant's obligation to pay rent hereunder and except as otherwise provided in
subparagraph (b) of Paragraph 7 hereof, and subject to the terms and conditions
of this Sublease, Subtenant shall be entitled to enforce all the rights of the
Sublandlord provided for in the Master Lease, Sublandlord hereby agreeing to
cooperate fully with Subtenant in the enforcement thereof.

       (c) Sublandlord's Compliance with Master Lease. Sublandlord shall not do
any act, matter or thing, or fail to do any act, matter or thing, if such action
or failure to act would result in, or constitute a violation or breach by
Sublandlord as tenant under the Master Lease of or a default under, the Master
Lease or otherwise result in the disturbance of Subtenant's possession of the
Premises.

       (d) Subtenant's Right to Make Payments to Landlord. Provided that
Subtenant is not in default hereunder, in the event that Sublandlord fails to
make payments of rent or any other charges due under the Master Lease (unless
Sublandlord shall be permitted under the Master Lease or by law to withhold such
payments of rent or other charges), Subtenant shall be entitled to make any such
payments directly to Landlord and deduct any amounts paid from its Rent and
other charge due under this Sublease.

       (e) Sublandlord's Indemnity in the Event that Subtenant Cures Default of
Subtenant under Master Lease. In the event that the Master Lease would have been
terminated by reason of Sublandlord's default thereunder but for the fact that
Subtenant

                                       9
<PAGE>   23

cured such default, Sublandlord shall indemnify Subtenant and hold Subtenant
harmless from and against all loss, damage or expense incurred by Subtenant in
effecting such cure, including, without limitation, reasonable attorneys' fees
and the additional monies by way of rent or otherwise expended by Subtenant.

       (f) Termination of Master Lease. In the event that the Master Lease is
terminated, then, as between Sublandlord and Subtenant, this Sublease shall
terminate at the same time without any liability on the part of Sublandlord to
Subtenant.

       (g) Default under Warrant Default Hereunder. in the event that Subtenant
shall default in making any payment referred to in Section 7 of the Warrant of
even date herewith of Subtenant in favor of Sublandlord, then, at the option of
Sublandlord exercisable by notice to such effect given to Subtenant, such
default shall be deemed to be and shall be a payment default by Subtenant under
this Sublease.

       (h) Commercial Rent Tax. Subtenant shall furnish to Sublandlord, upon the
request of Sublandlord, such information and such copies of documents as
Sublandlord may reasonably request in order to permit Sublandlord to receive a
commercial rent tax credit for the commercial rent tax paid by Subtenant.

       11. GUARANTY. The obligations of Subtenant hereunder shall be guaranteed
by guaranty of Jay Chiat, the Chief Executive Officer of Subtenant, in the form
of Exhibit D.

       12. CERTAIN DAMAGES; RESTORATION OF PREMISES BY SUBTENANT.

       (a) Liquidated Damages upon Failure of Subtenant to Surrender Premises.
In the event that Subtenant were to fail to surrender the Premises in the manner
provided in this Sublease upon the expiration or earlier termination of this
Sublease, the amount of damages that Sublandlord would suffer would be difficult
or impossible to ascertain. Therefore, the parties agree that in the event that
Subtenant shall fail to surrender the Premises in the manner provided in this
Sublease upon the expiration or earlier termination of this Sublease then
Subtenant shall pay to Sublandlord for each day on which Subtenant occupies the
Premises after the expiration or earlier termination of this Sublease, as
liquidated damages and in addition to any Additional Rent payable with respect
to such period, Base Rent at a rate equal to twice the per diem rate at which
Base Rent was payable on the day upon which the expiration or earlier
termination of this Sublease occurred. The parties hereto acknowledge and agree
that the liquidated damages provided for in this subparagraph represent a
reasonable estimate by the parties

                                       10
<PAGE>   24

of the damages that would be suffered by Sublandlord were Subtenant to fail to
surrender the Premises in the manner provided in this Sublease upon the
expiration or earlier termination of this Sublease and that they do not
constitute a penalty. Nothing in this subparagraph shall limit any other damages
to which Sublandlord may be entitled in respect of any breach of any term or
provision of this Sublease by Subtenant.

       (b) Reimbursement of Costs of Enforcement. Without limiting the
generality of Paragraph 52 of the Master Lease, Subtenant shall reimburse
Sublandlord for all legal fees and disbursements incurred by Sublandlord in
enforcing any provision of this Sublease. Sublandlord shall reimburse Subtenant
for all legal fees and disbursements incurred by Subtenant in enforcing any
provision of this Sublease.

       (c) Restoration of Premises by Subtenant In the event that Subtenant
shall close off or otherwise alter the door or doorway to the Premises or shall
alter or remove the demising wall between the Premises and the premises that
Subtenant presently occupies in the Building, then, prior to its surrender of
the Premises (whether upon the expiation or earlier termination of this
Sublease), Subtenant shall, in addition to taking any action required to be
taken by Subtenant under Paragraph 3 of the Master Lease, restore such door and
doorway and such demising wall to the condition they were in on the Commencement
Date.

       13. BROKER. Each party represents and warrants to the other that in
connection with the transactions contemplated by this Sublease it did not deal
directly or indirectly with any broker or finder, the representation and
warranty in this sentence to survive the expiration or earlier termination of
this Sublease. Each party hereby indemnifies the other and holds the other
harmless from and against any and all damages, costs, losses, liabilities or
expenses arising out of or related to claims arising out of any breach of the
representation contained in this Paragraph 13, such indemnity and hold harmless
to include, without limitation, the obligation to provide all costs of defense
against any such claims.

       14. ASSIGNMENT.

       (a) Prohibition against Assignment or Subletting by Subtenant. Subtenant
will not, without the prior written consent of Sublandlord, and the prior
written consent of Landlord, assign this Sublease or further sublet the Sublet
Premises in whole or in part; nor will Subtenant permit Subtenant's interest in
this Sublease to be vested in any third party by operation of law or otherwise.
Without limiting the generality of the foregoing or of Paragraphs 1 and 10
hereof, Subtenant acknowledges that any

                                       11
<PAGE>   25

assignment hereof further subletting of the Sublet Premises shall be subject to
the terms and provisions of the Master Lease.

       (b) Sublandlord's Termination of Master Lease. Sublandlord shall not
surrender or otherwise voluntarily terminate the Master Lease unless prior to
such surrender or voluntary termination Landlord shall have delivered to
Subtenant an instrument whereby Landlord agrees to recognize Subtenant's rights
under this Sublease and expressly assumes all of Sublandlord's obligations
hereunder.

       (c) Sublandlord's Assignment of this Sublease. Sublandlord shall be
permitted to assign this Sublease provided that prior to any assignment hereof
the assignee hereof delivers to Subtenant an instrument whereby such assignee
(i) agrees to recognize Subtenant's rights hereunder and (ii) expressly assumes
all of Sublandlord's obligations hereunder. In connection with such assignment,
Sublandlord and any assignee of this Sublease shall, with respect to the
security deposit deposited with Sublandlord hereunder, comply with the
provisions of Section 7-105 of the General Obligations Law regarding transfers
of security deposits.

       (d) Sublandlord Released upon Assignment. In the event that Sublandlord
shall surrender or otherwise voluntarily terminate the Master Lease in
compliance with subparagraph (b) of this Paragraph 14, or shall assign this
Sublease in compliance with subparagraph (c) of this Paragraph 14, then
Sublandlord shall have no further duties or obligations whatsoever hereunder,
and Landlord or the assignee hereof shall for all purposes be the Sublandlord
hereunder.

       15. MERGER; AMENDMENT. All prior understandings and agreements between
Sublandlord and Subtenant are merged within this Sublease, which fully and
completely sets forth their understanding. This Sublease may not be changed or
terminated orally or in any other manner than by an agreement in writing signed
by the party against which enforcement of the change or termination is sought.

       16. NOTICES.

       (a) Manner of Giving Notices. Any notice required or permitted to be
given hereunder shall be in writing and may be given by telecopier, by certified
mail, return receipt requested, or by personal delivery (including by reputable
overnight courier service such as Federal Express). Any notice given by
telecopier shall be deemed given when confirmation of transmission has been
received, provided that if such notice is transmitted at any time other than
during Normal Business Hours (as such term is

                                       12
<PAGE>   26

defined below) such notice shall be deemed given at the next commencement of
Normal Business Hours. Any notice given by certified mail, return receipt
requested, shall be deemed giving on the fourth (4th) day after the date upon
which it is mailed, postage paid. Any notice given by personal delivery shall be
deemed given when delivered, provided that if such notice is delivered at
anytime other than during Normal Business Hours such notice shall be deemed
given at the next commencement of Normal Business Hours. As used in this
Paragraph 16, the term "Normal Business Hours" means the hours between 9:00 a.m.
and 4:30 p.m. in the time zone covering the recipient's address as set forth
below, Monday through Friday, exclusive of any day that is not a Business Day
(the term "Business Day" meaning any day other than a day when banks in the
State of New York are required or permitted to be closed). Any notice given
hereunder shall be given to Sublandlord or Subtenant, as the case may be, at the
following address or telecopier number (and whether to an address or a
telecopier number, to the attention of the person indicated):

        If to Sublandlord:

               Tomar Studios, Inc.
               601 West 26th Street
               13th Floor
               New York, New York  10001
               Attn.: Tom Marrazza
                      President
               Telecopier: (212) 627-1987

        and from and after the Commencement Date:

               Tomar Studios, Inc.
               c/o Tom Marrazza
               l Irving Place
               Apartment V9A
               New York, New York  10003

        with a copy to:

               Terrence M. Bennett
               Bennett & Samios, LLP
               845 Third Avenue - 21st Floor

                                       13
<PAGE>   27

               New York, New York  10022
               Telecopier: (212) 753-6262

        If to Subtenant:

               Screaming Media.com, Inc.
               601 West 26th Street
               New York, New York  10001
               Attn.: William P.  Kelly
                      General Counsel
               Telecopier: (212) 422-1761

        with a copy to:

               Alan J.  Bernstein, Esq.
               Carter, Ledyard & Milburn
               2 Wall Street
               New York, New York  10005
               Telecopier: (212) 732-3232

       (b) Change of Address for Notices. Either party may change its address
for notices as set forth above by notice to such effect to the other party given
in the similar provided in subsection (a) of this Paragraph 16.

       (c) Forwarding Copies of Notices from Landlord. Subtenant shall promptly
give Sublandlord written notice, and a copy, of any notices served by Landlord
upon Subtenant pursuant to the terms, conditions and provisions of the Master
Lease. Sublandlord shall promptly give Subtenant written notice, and a copy, of
any notice of default served by the Landlord upon Sublandlord pursuant to the
terms, provisions and conditions of the Master Lease. Sublandlord shall promptly
forward to Subtenant any notices of changes in the building rules (as set forth
in the Master Lease), unless at the time that Sublandlord receives any such
notice Subtenant shall be in possession of premises in the Building other than
the Premises.

       17. GOVERNING LAW. This Sublease shall be governed by and construed in
accordance with the law of the State of New York applicable to agreements made
and to be performed wholly within the State of New York.

                                       14
<PAGE>   28

       18. SUBMISSION TO JURISDICTION. The parties hereto agree that any action
or proceeding arising out of or relating to this Sublease shall be brought only
in a federal court sitting in New York City or New York State court sitting in
New York City and each of the parties hereto submits to the jurisdiction of any
such court in the event that such any such action or proceeding shall be
brought. Each of the parties hereto agrees that all claims in respect of any
such action or proceeding may be heard and determined in any such court and
waives any objection that it may now or hereafter have as to the venue of any
such action or proceeding brought in any such court or that any such court is an
inconvenient forum. Each of the parties hereto consents to the service of
process upon it in any such action or proceeding in any such court by the
mailing of copies of such process to it, by certified or registered mail, return
receipt requested, at its address specified in Paragraph 16.

       19. BINDING EFFECT. Without limiting the effect of Paragraph 14 hereof,
the covenants and agreements in this Sublease shall bind and inure to the
benefit of Sublandlord and Subtenant and their successors and assigns.

                                       15
<PAGE>   29

       IN WITNESS WHEREOF, Sublandlord and Subtenant have executed this Sublease
as of on the date first written above.

                                            TOMAR STUDIOS, INC.

                                            By:
---------------------                          -------------------------
Witness                                         Tom Marrazza
Print Name:                                     President

                                            SCREAMING MEDIA.COM, INC.

                                            By:
---------------------                          -------------------------
Witness                                         Name:
Print Name:                                     Title:

                                       16
<PAGE>   30

                                                                       Exhibit A

                              Copy of Master Lease

                                       17

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