Document:

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                                                                   EXHIBIT 10.35

THIS NOTE AND THE SECURITIES ISSUABLE UPON CONVERSION OF THIS NOTE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR THE
SECURITIES LAWS OF ANY STATE. THIS NOTE AND ANY OF SUCH SECURITIES MAY NOT BE
SOLD, OFFERED FOR SALE, PLEDGED, HYPOTHECATED OR OTHERWISE TRANSFERRED EXCEPT
PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT RELATING TO SUCH TRANSACTION
UNDER THE ACT AND ALL OTHER APPLICABLE SECURITIES LAWS, OR PURSUANT TO AN
EXEMPTION FROM THE REGISTRATION PROVISIONS OF THE ACT AND OTHER APPLICABLE
SECURITIES LAWS.

                       CONVERTIBLE SECURED PROMISSORY NOTE
$700,000                                                       November 29, 2000

       FOR VALUE RECEIVED, YELLOWBRIX, INC., a Delaware corporation (the
"Company"), hereby promises to pay to the order of ABN AMRO Capital (USA) Inc.
(the "Holder") the sum of seven hundred thousand dollars and NO cents ($700,000)
(the "Note Amount") or such lesser sum as shall have been advanced to the
Company by the Holder, all as hereinafter provided with interest thereon from
the date of issuance of this Note at the rate set forth in Section 2.1 hereof.
The Purchase Agreement (as defined below) provides for the Holder to make
advances to the Company from time to time and further provides that all such
advances are evidenced by this Note. The aggregate amount from time to time
outstanding hereunder, and each payment of interest and principal with respect
hereto, shall be recorded on the books and records of the Purchaser, and
endorsed on the grid attached hereto which is part of this Note. The aggregate
amount reflected on such books and records as outstanding at any time, including
any entries by the Purchaser and the Company on the attached grid, shall be
prima facie evidence of the aggregate amount owing and unpaid hereunder as of
such time. All payments to be made by the Company in repayment of interest and
principal or other amounts due hereunder shall be made in currency of the United
States of America which at the time of payment shall be legal tender for the
payment of public or private debts.

       1.     THE NOTE.

       1.1    Related Transactions. This "Note" is one of a duly authorized
series of Convertible Secured Promissory Notes initially dated November 29, 2000
(the "Notes") issued pursuant to that certain Note and Warrant Purchase
Agreement, dated as of November 29, 2000 (the "Purchase Agreement"), by and
among the Company, ABN AMRO Capital (USA) Inc., and to such other persons to
whom Notes are sold thereunder (collectively, the "Investors"). Capitalized
terms used but not otherwise defined herein shall have the meanings given to
them in the Purchase Agreement.

       1.2    Payment. All payments of interest and principal or other amounts
payable under this Note shall be payable in immediately available funds to the
account of the Holder as the Holder may from time to time designate in writing
to the Company.

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       2.     PAYMENTS OF PRINCIPAL AND INTEREST.

       2.1    Rate of Interest. This Note shall accrue interest on the unpaid
outstanding principal balance hereof at the rate equal to the prime rate as
published by The Wall Street Journal in the section titled "Money Rates" (which
generally is the base rate on corporate loans posted by at least 75 percent of
the 30 largest commercial banks) as in effect from time to time, plus two
percent (2%) (Prime Rate + 2%) per annum, calculated on a the basis of a 360-day
year and payable at maturity. If any principal, installment of interest or other
payment is not paid in full on the due date thereof (whether by maturity,
prepayment, or acceleration) or any Event of Default has occurred and is
continuing, then the outstanding principal balance of the Notes, any overdue
installment of interest (to the extent permitted by applicable law), including
interest accruing after the commencement of any proceeding under any bankruptcy
or insolvency law, and all other payments will bear interest from the due date
of such payment, or from and after an Event of Default, at a rate equal to the
Prime Rate plus five percent (5%) ("Default Rate"). The outstanding principal
balance of the Notes shall bear interest at the Default Rate from and after any
Event of Default. The Company shall pay to the holders of the Notes all
reasonable out-of-pocket costs and expenses, incurred by such holders in any
effort to collect the Notes and the other payments, including the reasonable
attorneys fees and expenses for services rendered in connection therewith, and
pay interest on such costs and expenses to the extent not paid when demanded at
the Default Rate.

       2.2    Mandatory Principal and Interest Payment. Unless converted into
shares of the Company's capital stock, in accordance with Section 4 hereof, and
subject to acceleration of the maturity of this Note in connection with the
occurrence of an Event of Default or Change in Control, the total amount of
principal due under this Note and all accrued and unpaid interest thereon shall
be paid in a single lump sum on November 29, 2001 (the "Repayment Date").

       3.     PREPAYMENTS PRIOR TO MATURITY.

       3.1    Company Requested Prepayment. Subject to the terms of this Section
3, not withstanding any other provisions of this Note, and upon two (2) days
prior written notice and without penalty, the Company may prepay the Notes in
whole or in part. All prepayments on the Notes shall be applied pro rata against
the amounts then owed on the Notes such that the amount prepaid on each Note
will bear the same ratio to the total amount then being prepaid on all the Notes
as the amount of principal and accrued interest outstanding on each Note bears
to the total amount of principal and accrued interest outstanding on all of the
Notes. Any prepayments received with respect to this Note shall first be applied
to the accrued but unpaid interest then outstanding, with the remainder, if any,
applied to principal.

       3.2    Holder Requested Prepayment. If at any time prior to the Repayment
Date, the Company sells any of its capital stock in a single transaction or
series of substantially related transactions from which less than the amount
equal to $10,000,000 minus the Over-Advance (as defined below) in gross proceeds
are raised, other than a transaction involving the exercise of employee or
consultant or other existing stock options and the exercise of employee,
consultant or other existing warrants (a "Non-Qualified Financing"), the Holder
shall have the right, within

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five business days of receiving notice of such Non-Qualified Financing from the
Company in writing, to demand the repayment of all, but not less than all, of
the outstanding principal and accrued interest on the Notes in one lump sum
within three days of the closing of such Non-Qualified Financing.

       4.     CONVERSION OF NOTE.

       4.1    Automatic Conversion

              4.1.1  Qualified Financing. If at any time prior to the Repayment
Date (a) the Company sells shares of its preferred stock ("Capital Stock
Equivalents") in a single transaction or a series of substantially related
transactions from which at least the amount equal to $10,000,000 minus the
Over-Advance of gross proceeds are raised, exclusive of amounts raised from the
Purchase Agreement (the "Placement") and excluding costs and expenses relating
to the Placement, or (b) the Company completes an initial public offering of its
Common Stock from which gross proceeds payable to the Company are at least $30
million, exclusive of costs and expenses related to such offering (the "IPO"),
(each of an IPO and a Placement shall be considered a "Qualified Financing"),
then the unpaid principal amount and all accrued and unpaid interest owing under
this Note (as of the date of the initial closing of the Qualified Financing (the
"Threshold Closing Date")) shall automatically and without further action of the
Holder be converted into a number of shares of the same class or series of
capital stock or Capital Stock Equivalents sold in the Qualified Financing,
which number shall equal the amount of unpaid principal and interest due
hereunder as of the Threshold Closing Date divided by the price per share (the
"Mandatory Conversion Price") of the capital stock or Capital Stock Equivalents
sold in the Qualified Financing. As of the Threshold Closing Date, (i) this Note
shall automatically convert into shares of capital stock and Capital Stock
Equivalents as set forth in this Section 4.1.1, (ii) the Holder of this Note
shall be deemed to be the person or persons in whose name or names any
certificate for such shares of capital stock or Capital Stock Equivalents shall
be issuable upon the automatic conversion of this Note, and (iii) this Note
shall be deemed canceled and all amounts previously due and payable shall be
deemed to be fully paid. The "Over-Advance" shall mean the amount of any and all
Notes and Advances (as defined in the Note and Warrant Purchase Agreement of
even date herewith) in excess of $2,000,000.

              4.1.2  Condition to Conversion. Any conversion under Section 4.1.1
shall be subject to all the terms and conditions contained in the Qualified
Financing applicable to the shares of capital stock or Capital Stock Equivalents
into which this Note is convertible, including the conversion rights or exercise
rights in connection with convertible securities or other Capital Stock
Equivalents being issued in the Qualified Financing and the Holder of this Note
shall be entitled to all of the benefits and rights of the purchasers of capital
stock or Capital Stock Equivalents into which this Note is convertible. The
Holder and the Company agree to execute, and become a party to, each of the
agreements which the subscribers and the Company execute

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in connection with the Qualified Financing or any other agreements substantially
identical thereto.

       4.2    Optional Conversion Upon an Extraordinary Event.

              4.2.1  Extraordinary Event. Subject to and upon compliance with
the provisions hereof, commencing on the date this Note is issued through the
Repayment Date, in the event of any Change in Control (as defined in the
Purchase Agreement) and at the option of the Holder, all of the principal amount
then owing from time to time under this Note and all accrued and unpaid interest
thereon may (i) become immediately due and payable, or (ii) prior to the payment
thereof, be converted, in whole and not in part, into fully paid and
non-assessable shares of the Company's Common Stock at the Alternative
Conversion Price determined under Section 4.2.2 hereof. To determine the number
of Conversion Shares issuable upon conversion of any amount due under this
Section 4.2.1, the amount being converted shall be divided by such Alternative
Conversion Price. The Company will provide the Holder with notice of the date
scheduled for the closing of the Change in Control and the Alternative
Conversion Price at least five (5) days prior to such scheduled date and shall
give the Holder reasonable opportunity to review all relevant documents with
respect to the Change in Control and to ask questions of the Company's
management and to receive other information reasonably requested of the Company
in the Change of Control transaction.

              4.2.2  Alternative Conversion Price. Under Section 4.2.1, the
price at which Common Stock shall be issuable upon conversion of this Note (the
"Alternative Conversion Price") shall equal seventy percent (70%) of the Fair
Market Value of one share of the Company's Common Stock with Fair Market Value
determined as follows:

              (a)    If the Change in Control is effectuated through an
investment in the Company, the Fair Market Value shall be equal to the amount
paid for one share of the Company's Common Stock (or common stock equivalent).

              (b)    If the Change of Control is accomplished by an acquisition
of the Company for cash consideration, the Fair Market Value shall be the amount
paid for one share of Common Stock in the acquisition.

              (c)    If the Change in Control is accomplished by the acquisition
of the Company's capital stock in exchange for the capital stock of another
company (the "Other Company"), and in such acquisition a value is prescribed in
terms of a preestablished maximum or minimum price payable for a share of
capital stock, Fair Market Value shall mean the value of the securities and
other consideration received for a share of the Company's capital stock in such
acquisition. Such value shall be established by utilizing the same valuation
standards against which the preestablished maximum or minimum price is being
determined.

              (d)    If the Change in Control is accomplished by the acquisition
of the Company's capital stock in exchange for the capital stock of the Other
Company in which there is no preestablished maximum or minimum price payable for
a share of the Company's capital stock, Fair Market Value shall mean the value
of the Other Company's capital stock being

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exchanged equal to the value per share received by holders of the Company's
Common Stock pursuant to such Change in Control. In the event that the Fair
Market Value of the Other Company's common stock cannot be determined as
described in Sections 4.2.2(a) through (d), the Fair Market Value shall be the
fair value as determined in good faith by the Board of Directors of the Company
and the Other Company and in accordance with good financial practice. In the
event such securities are not registered or are subject to an agreement or other
restriction limiting their free marketability, the absence or loss of that
marketability shall be considered by the Board of Directors in making its good
faith determination of Fair Market Value.

       (e)    The pro rata value per share, after taxes, of each share of
capital stock of the Company in the event of a sale of all or substantially all
of the assets and property of the Company, where such sale would be deemed a
liquidation or winding up of the Company.

       4.3    Unconditional Optional Conversion.

              4.3.1  Conversion. Subject to and upon compliance with the
provisions hereof, at the option of the Holder, any or all of the principal
amount and accrued and unpaid interest through the date of conversion under this
Note may, at any time be converted, in whole or in any part, into fully paid and
non-assessable shares of the Company's Common Stock at the Optional Conversion
Price as determined in Section 4.3.2 hereof. The number of shares of Common
Stock issuable shall be determined by dividing the principal and interest being
converted hereunder by the Optional Conversion Price then in effect under
Section 4.3.2.

              4.3.2  Optional Conversion Price. The Optional Conversion Price
for purposes of any conversion made pursuant to Section 4.3.1 shall be the Fair
Market Value of the Common Stock upon conversion. The "Fair Market Value" for
purposes of this Section 4.3.2 shall be the price agreed upon by the Company's
Board of Directors and the Holders acting in good faith. The Holder of this Note
may at any time request that the Board of Directors provide the Holder with the
Fair Market Value of the Common Stock.

       4.4    Optional Conversion Upon Failure to Consummate Qualified
Financing. If the Company fails to consummate a Qualified Financing before the
Repayment Date, subject to and upon compliance with the provisions hereof, at
the option of the Holder, any or all of the principal amount and accrued and
unpaid interest through the date of conversion under this Note may, at any time
be converted, in whole or in any part, into fully paid and non-assessable shares
of the Company's Series A Preferred Stock as follows: the number of Series A
Preferred Stock issuable upon the conversion pursuant to this Section 4.4 shall
equal the Note Amount and accrued interest divided by 10; provided, however,
that a conversion price of $1.78 per share shall apply to the conversion of such
Series A Preferred Stock into Common Stock as described in Section 3.2 of the
Certificate of Designation of such Series A Preferred Stock.

       4.5    Manner of Exercise of Conversion Privilege. In order to exercise
the conversion privilege under Section 4.2, 4.3 or 4.4 above, the Holder of this
Note shall give written notice to the Company that the Holder elects to convert
all or a portion of this Note which notice shall also

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specify the amount of principal and/or accrued and unpaid interest to which such
conversion relates. Any such notice of conversion shall supersede any obligation
to pay principal or interest under this Note if such notice is received by the
Company prior to the actual receipt by the Holder of the payment. As promptly as
practicable after receipt of such notice, but in any case not later than ten
(10) days thereafter, the Company shall issue and shall deliver to such Holder
or such person or persons designated by such Holder a certificate or
certificates for the number of full shares of capital stock issuable upon such
conversion of the principal and/or interest in accordance with the provisions
hereof and any cash adjustment payable pursuant to Section 4.11 hereof, without
charge to the Holder for any issuance tax in respect thereof or other cost
incurred by the Company in connection with such conversion and the related
issuance of capital stock. The conversion shall become effective on the date the
notice of conversion is received by the Company, and the person or persons in
whose name or names any certificate for the capital stock shall be issuable upon
such conversion shall be deemed to have become on said date the holder or
holders of record of the capital stock represented by that certificate. The
Company will not close its books against the transfer of capital stock issued or
issuable upon conversion of this Note, or portion thereof, in any manner which
would interfere with the timely conversion of this Note, or portion thereof.

       4.6    Splits, Subdivisions or Combinations of Shares and Stock
Dividends. If the Company at any time while this Note remains outstanding shall
split, subdivide, combine its Common Stock or other capital stock or declare a
stock dividend, the applicable conversion price shall be proportionately
decreased in the case of a split or subdivision or share dividend, or
proportionately increased in the case of a combination. Any adjustment under
this Section 4.6 shall become effective when the split, subdivision or
combination becomes effective.

       4.7    No Impairment. The Company will not, by amendment of its
Certificate of Incorporation or Bylaws or through any reorganization, transfer
of assets, consolidation, merger, dissolution, issue or sale of securities or
any other voluntary action, avoid or seek to avoid the observance or performance
of any of the terms to be observed or performed hereunder by the Company, but
will at all times in good faith assist in the carrying out of all the provisions
of this Section 4.7 and in the taking of all such action as may be necessary or
appropriate in order to protect the exercise and conversion rights of the Holder
against impairment.

       4.8    Notice of Adjustments. Upon the occurrence of each event
establishing or adjusting the applicable conversion price, the Company at its
expense shall promptly furnish to the Holder written notice setting forth such
established or adjusted Conversion Price.

       4.9    Reorganization, Reclassification, Consolidation, Merger or Sale.
Subject to Section 4.2 above, if any capital reorganization or reclassification
of the capital stock of the Company, or any consolidation or merger of the
Company with another entity, or the sale of all or substantially all of the
assets of the Company to another entity, or any exchange of capital stock of the
Company for cash or any other securities or assets, shall be effected in such a
way that holders of the Company's capital stock shall be entitled to receive
stock, securities, cash or assets with respect to or in exchange for capital
stock, then, as a condition of such reorganization, reclassification,
consolidation, merger, sale or exchange, lawful and adequate

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provisions shall be made whereby the Holder hereof shall thereafter have the
right to purchase and receive, upon the basis and upon the terms and conditions
specified in this Note and in lieu of the capital stock immediately purchasable
and receivable upon the exercise of the rights represented hereby, such shares
of stock, securities, cash or assets as may be issued or payable with respect to
or in exchange for a number of shares of outstanding capital stock equal to the
number of shares of capital stock immediately purchasable and receivable upon
the exercise of the rights represented hereby. In any such case, appropriate
provision shall be made with respect to the rights and interests of the Holder
of this Note to the end that the provisions hereof (including, without
limitation, provisions for adjustments of the applicable conversion price) shall
thereafter be applicable, as nearly as may be practicable, in relation to any
shares of stock, securities, cash or assets thereafter deliverable upon the
exercise hereof.

       4.10   Reservation of Shares. The Company shall at all times reserve and
keep available out of the aggregate of its authorized but unissued Common Stock
or other capital stock or its issued Common Stock or other capital stock held in
its treasury, or both, for the purpose of effecting the conversion of this Note,
such number of shares of Common Stock, capital stock or Capital Stock
Equivalents as shall then be issuable upon the conversion of this Note. The
Company covenants that all shares of Common Stock or capital stock issued on
conversion of this Note shall be duly and validly issued and fully paid and
nonassessable and free from all taxes, liens and charges with respect to the
issue thereof.

       4.11   Fractional Shares. No fractional shares of capital stock shall be
issued upon conversion of this Note. Instead of any fractional share which would
otherwise be issuable upon conversion of this Note, the Company shall pay to the
Holder of this Note a cash adjustment in respect of such fractional interest in
an amount equal to the portion of the then applicable conversion price for each
share.

       5.     EVENTS OF DEFAULT.

       5.1    Events of Default Defined. The principal and interest due and
owing on this Note may be declared, at the option of the Majority Holders (as
defined in the Purchase Agreement), or become, in certain circumstances,
immediately due and payable, upon an "Event of Default" as defined in the
Purchase Agreement.

       5.2    Notification. If an Event of Default as defined above shall occur
the Company will notify the Holder promptly in writing by mail of the Event of
Default describing it in reasonable detail, including a statement of the nature
and length of existence thereof, and what action the Company proposes to take
with respect thereto.

       6.     SUITS FOR ENFORCEMENT UPON DEFAULT.

       If an Event of Default shall have occurred, then and in any such event
each Holder, at any time at their option, declare the principal of and the
accrued interest due under the Notes to be due and payable, whereupon the same
shall forthwith mature and become due and payable without demand, protest,
notice of protest and notice of default, presentment for payment and

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diligence in collection, all of which are hereby expressly waived by the
Company. In case any Event of Default shall occur, each Holder may proceed to
protect and enforce their rights hereunder by a suit in equity, action at law or
other appropriate proceeding. The Company covenants that if default be made in
any payment of any principal of or interest on this Note, it will pay to the
Holder of this Note and to the holders of all the Notes to the extent permitted
under applicable law such further reasonable amount as shall be sufficient to
cover the cost and expenses of collection, including reasonable compensation to
the attorneys which each Holder retains and any court costs incurred for all
services rendered in that connection. No course of dealing and no delay on the
part of any of the Holders in exercising any rights shall operate as a waiver
thereof or otherwise prejudice their rights and no consent or waiver shall
extend beyond the particular case involved.

       7.     SECURITY INTEREST.

       Pursuant to the terms of that certain Security Agreement, dated as of
November 29, 2000 ("Security Agreement"), by and among the Company and the
Investors, in order to secure the repayment of the Notes, the Company has
granted a blanket security interest to the Holder, the holders of all of the
other Notes and various other prior investors in the Company's assets (the
"Collateral"). The security interest will terminate upon repayment in full of
all amounts owing in respect of all of the Notes as set forth in the Security
Agreement.

              During the period when Notes are outstanding or any amounts remain
payable in connection therewith, the Company shall not, without the prior
written consent of the Majority Holders, create or permit to be created any
other liens or security interests in or assignments of any portion of the
Company's interest in the Collateral, other than the Permitted Liens (as defined
in the Purchase Agreement).

       8.     NOTICES.

       Any request, demand, authorization, direction, notice, consent, waiver or
other document permitted by this Note to be made upon, given or furnished to, or
filed with the Company or the Holder shall be sufficient for every purpose
hereunder if in writing and mailed to the Company, addressed to it at
YellowBrix, Inc., 66 Canal Center Plaza, Suite 700, Alexandria, Virginia 22314
(or such subsequent address as the Company shall advise the Holder hereof in
writing) and if to the Holder at the address for the Holder reflected in the
Company's records (or at such other address as the Holder hereof shall advise
the Company in writing). All notices required hereunder shall be deemed to have
been given or made when actually delivered to or received by the party to which
the notice is addressed at its respective address.

       9.     MUTILATION, DESTRUCTION, LOSS, OR REISSUANCE.

       Upon receipt of evidence reasonably satisfactory to the Company of the
loss, theft, destruction or mutilation of a Note or any note issued in exchange
therefor and, if requested in the case of any such loss, theft or destruction,
upon delivery of an indemnity bond or other agreement or security reasonably
satisfactory to the Company, or, in the case of any such

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mutilation, upon surrender and cancellation of such note, the Company will issue
a new note, of like tenor and amount and dated the date to which interest has
been paid, in lieu of such lost, stolen, destroyed or mutilated note, provided,
however, if any note of which a Holder, its nominee, or any of its partners or
affiliates is the registered holder is lost, stolen or destroyed, the affidavit
of the registered holder setting forth the circumstances with respect to such
loss, theft or destruction shall be accepted as satisfactory evidence thereof,
and no indemnification bond or other security shall be required as a condition
to the execution and delivery by the Company of a new note in replacement of
such lost, stolen or destroyed note other than the registered holder's written
agreement to indemnify the Company.

       10.    SUCCESSORS.

       All of the covenants, stipulations, promises and agreement in this Note
contained by or on behalf of the Company shall bind and inure to the benefit of
its successors whether so expressed or not and also to the benefit of the Holder
and its successors.

       11.    AMENDMENT.

       The Majority Holders shall have the right to amend the provisions of all
the Notes, provided, that no such waiver shall extend the maturity of this Note,
change the principal amount, reduce the interest rate payable hereunder, affect
the conversion rights in respect of this Note, or alter the provisions of
Section 6, or 7 of this Note, without the consent of each Holder affected
thereby.

       12.    GOVERNING LAW.

       This Note shall be deemed to be a contract made under the laws of the
State of Delaware without regard to conflict of law principles and for all
purposes shall be construed in accordance with the laws thereof. This Note shall
be subject to and governed by the terms and conditions of the Purchase
Agreement.

       13.    PRESENTMENT.

       The Company hereby waives diligence, presentment, demand and protest of
every kind whatsoever. The failure of any Holder hereof to exercise any of its
rights hereunder in any particular instance shall not constitute a waiver of the
same or of any other right in that or any subsequent instance.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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              IN WITNESS WHEREOF, the Company has caused this Note to be
executed in its corporate name by its duly authorized officers and to be dated
as of the day and year first above written.

ATTEST:                             YELLOWBRIX, INC.

By: /s/ KEVIN S. LAPIDUS            By: /s/ DAVID C. HOPPMANN
   --------------------                ---------------------
Kevin S. Lapidus, Secretary         David C. Hoppmann, Chief Executive Officer

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                       ADVANCES AND PAYMENTS OF PRINCIPAL

<TABLE>
<CAPTION>
                                             Amount of         Outstanding         Notation
        Date          Amount of Advance   Principal Paid    Principal Balance       Made By
-------------------------------------------------------------------------------------------------
<S>                   <C>                <C>                <C>                <C>
 November 29, 2000        $700,000               $                  $          YellowBrix
                                                                               ABN AMRO Capital
                                                                               (USA) Inc.
-------------------------------------------------------------------------------------------------

-------------------------------------------------------------------------------------------------

-------------------------------------------------------------------------------------------------

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</TABLE>

                                       11<PAGE>   1

                                                                   EXHIBIT 10.36

        THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT
        OF 1933, AS AMENDED. THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED, OR
        HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT
        RELATED THERETO OR AN OPINION OF COUNSEL, REASONABLY SATISFACTORY TO THE
        COMPANY, THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT
        OF 1933, AS AMENDED.

                                     WARRANT
                                       of
                                YELLOWBRIX, INC.

November 29, 2000

        THIS CERTIFIES that, for value received, ABN AMRO Capital (USA) Inc.
(the "Warrantholder"), is entitled, upon the terms and subject to the conditions
set forth herein, to purchase from YellowBrix, Inc., a Delaware corporation (the
"Company"), either the number of shares of common stock, par value $.001 per
share (the "Common Stock"), of the Company (the "Shares") set forth in Schedule
A attached hereto, as subject to adjustments as described herein, or Series A
Preferred Stock, par value $.001 per share (the "Series A Preferred Stock") at
the purchase price per share described below.

        This Warrant is being issued to the Warrantholder in conjunction with
the issuance of $700,000 of Secured Promissory Notes pursuant to the Note and
Warrant Purchase Agreement, dated as of November 29, 2000 (the "Purchase
Agreement"), and is subject to the following terms and conditions:

        1.      Exercise of Warrant.

                (a)     Exercise and Payment. This Warrant may be exercised in
whole or in part, at any time, or from time to time, after the date hereof and
on or before the seventh anniversary of the date hereof by the surrender of this
Warrant and the Notice of Exercise annexed hereto (duly completed and executed
on behalf of the Warrantholder) to the Company and by (i) the payment of the
Exercise Price (as defined below) for the Shares to be purchased by the
Warrantholder to the Company by cash, check, cancellation of indebtedness, or
transfer of shares of Common Stock, or any combination thereof; (ii) by Cashless
Exercise as provided in Section 13 hereof; or (iii) by Same Day Exercise and
Sale as provided in Section 14 hereof. The Company will prepare and deliver a
certificate for the Shares purchased and, if this Warrant is exercised in part,
a new Warrant for the unexercised portion of this Warrant. The Company agrees
that, upon exercise of this Warrant in accordance with the terms hereof, the
Shares so purchased will be deemed to be issued to the Warrantholder as the
record owner of such Shares as of the close of business on the date on which
this Warrant was exercised.

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                (b)     Delivery of Shares. Certificates for Shares purchased
under this Warrant and, on partial exercise of this Warrant, a new Warrant for
the unexercised portion of this Warrant will be delivered to the Warrantholder
or to such person or persons as the Warrantholder may direct as promptly as
practicable after the date on which this Warrant was exercised. The Company
covenants that all Shares that may be issued upon the exercise of rights
represented by this Warrant will, upon exercise of the rights represented by
this Warrant, payment of the Exercise Price and issuance by the Company, be duly
authorized, validly issued, fully paid and nonassessable.

        2.      Reservation of Shares; No Impairment or Amendment. The Company
will at all times reserve and keep available, solely for issuance, sale and
delivery upon the exercise of this Warrant, a number of shares of Common Stock
and Series A Preferred Stock (as described below) equal to the number of shares
of Common Stock or Series A Preferred Stock issuable upon the exercise of this
Warrant. The Company will not by any amendment of its Certificate of
Incorporation or By-laws or through any other means, avoid or seek to avoid the
observance or performance of any of the terms of this Warrant. The Company will
take all such reasonable action as may be necessary to assure that such shares
of Common Stock and Series A Preferred Stock may be issued as provided herein
without violation of any applicable law or regulation, or of any requirements of
any domestic securities exchange or automated quotation system upon which the
shares of Common Stock may be listed.

        3.      Expiration. This Warrant, if not exercised by Warrantholder
prior thereto, will expire on the seventh anniversary of its respective grant
date.

        4.      Exercise Price. Subject to adjustment as hereinafter described,
the price per share payable to the Company on the exercise of the purchase right
evidenced by this Warrant shall be $3.72 per Share (the "Exercise Price") and
the Warrant shall be exercisable for 188,172 shares of Common Stock.

                (a)     Adjustment to Exercise Price Based On Private Equity
Qualified Financing. Unless otherwise mutually agreed to in writing, in the
event the Company enters into a transaction resulting in gross proceeds to the
Company in excess of an amount equal to $10,000,000 minus the Over-Advance (as
defined below) from the sale of preferred stock (the "Private Equity Qualified
Financing"), the Exercise Price shall equal eighty-five percent (85%) of the
purchase price per share in such Private Equity Qualified Financing. The
"Over-Advance" shall mean the amount of any and all Notes and Advances (both as
defined in the Note and Warrant Purchase Agreement of even date herewith) in
excess of $2,000,000.

                (b)     Adjustment to Exercise Price Based on IPO Qualified
Financing. Unless otherwise mutually agreed to in writing, in the event the
Company completes an initial public offering of its securities in a gross amount
of at least $30,000,000 on any national market or exchange (the "IPO Qualified
Financing"), the Exercise Price shall equal $3.72.

                                      -2-
<PAGE>   3

                (c)     Adjustment to Exercise Price After May 31, 2001. Unless
otherwise agreed to in writing, if a Qualified Financing or Exchange Transaction
(as described below) does not occur on or before May 31, 2001, the Warrant shall
be convertible into shares of the Company's Series A Preferred Stock, par value
$.001 per share (the "Series A Preferred Stock"). The number of Series A
Preferred Stock issuable upon exercise of the Warrant shall equal the number of
Shares multiplied by $3.72 and divided by 10; provided, however, that a
conversion price of $1.78 per share shall apply to the conversion of such Series
A Preferred Stock into Common Stock as described in Section 3.4 of the
Certificate of Designation of such Series A Preferred Stock.

                (d)     Adjustment to Number of Shares. In the event the
Exercise Price is adjusted pursuant to this Section 4, the number of Shares for
which this Warrant is exercisable shall be equal to 188,172 multiplied by a
fraction, the numerator of which is shall be the exercise price prior to
adjustment and the denominator of which shall be the exercise price as adjusted
by this Section 4.

                (e)     Antidilution.

                (1)     If any capital reorganization or reclassification of the
capital stock of the Company, or an Exchange Transaction (as defined below), or
the sale of all or substantially all of its assets to another corporation (the
"Sale") shall be effected in such a way that holders of Common Stock shall be
entitled to receive stock, securities, cash or other property with respect to or
in exchange for Common Stock, then, as a condition of such reorganization,
reclassification, Exchange Transaction or sale, lawful and adequate provision
shall be made whereby the holder of this Warrant shall have the right to acquire
and receive upon exercise of this Warrant such shares of stock, securities, cash
or other property issuable or payable (as part of the reorganization,
reclassification, Exchange Transaction or Sale) with respect to or in exchange
for such number of outstanding shares of the Company's Common Stock as would
have been received upon exercise of this Warrant at the Exercise Price then in
effect immediately preceding such reorganization, reclassification, Exchange
Transaction or Sale.

                (2)     The Company will not effect any such Exchange
Transaction or Sale, unless prior to the consummation thereof the successor
entity (if other than the Company) resulting from such Exchange Transaction or
the entity purchasing such assets shall assume by written instrument mailed or
delivered to the holder of this Warrant at the last address of such holder
appearing on the books of the Company, the obligation to deliver to such holder
such shares of stock, securities or assets as, in accordance with the foregoing
provisions, such Warrantholder may be entitled to purchase.

                (3)     If a purchase, tender or exchange offer is made to and
accepted by the holders of more than 50% of the outstanding shares of Common
Stock of the Company, the Company shall not effect any Exchange Transaction or
sale with the person having made such offer or with any Affiliate of such
person, unless prior to the consummation of such Exchange Transaction or sale
the holder of this Warrant shall have been given a reasonable opportunity to
then elect to receive upon the exercise of this

                                      -3-
<PAGE>   4

Warrant either the stock, securities or assets then issuable with respect to the
Common Stock of the Company or the stock, securities or assets, or the
equivalent, issued to previous holders of the Common Stock in accordance with
such offer.

                (4)     Notwithstanding the foregoing, in the event of an
Exchange Transaction with is a merger or acquisition of the Company, the
acquirer ("Acquirer") may repurchase the Warrant by payment in U.S. dollars,
simultaneously with such merger or acquisition, to the Warrantholder in the
following amount: the number of shares of Common Stock (or Common Stock
resulting from the conversion of Series A Preferred Stock in the event Section
4(b) hereof has been applied) purchasable pursuant to the Warrant multiplied by
the difference between the price per share offered by the Acquirer for such
Common Stock or Series A Preferred Stock and the Exercise Price.

                (5)     For purposes hereof, the term "Affiliate" with respect
to any given person shall mean any person controlling, controlled by or under
common control with the given person.

                (6)     For purposes hereof, the term "Exchange Transaction"
means a merger (other than a merger of the Company in which the holders of
Common Stock immediately prior to the merger have the same proportionate
ownership of Common Stock in the surviving entity immediately after the merger),
consolidation, disposition of property or stock, separation, reorganization
(other than a mere reincorporation or the creation of a holding company),
liquidation of the Company or any other similar transaction or event so
designated by the Board, in its reasonable good faith judgment, as a result of
which the stockholders of the Company receive cash, stock or other property in
exchange for or in connection with their shares of Common Stock.

                (7)     In case the Company shall at any time subdivide its
outstanding shares of Common Stock into a greater number of shares, the Exercise
Price in effect immediately prior to such subdivision shall be proportionately
reduced and the number of shares purchasable under this Warrant shall be
proportionately increased. Conversely, in case the Common Stock shall be
combined into a smaller number of shares, the Exercise Price in effect
immediately prior to such combination shall be proportionately increased and the
number of shares purchasable hereunder shall be proportionately reduced.

                (8)     If the Company shall declare a dividend on its Common
Stock payable in stock or other securities of the Company or of any other
entity, or in property or otherwise than in cash, to holders of record of the
Common Stock as of a date prior to the date of exercise of this Warrant, the
Warrantholder shall, without additional cost, be entitled to receive upon the
exercise hereof, in addition to the Common Stock to which the Warrantholder is
otherwise entitled upon such exercise, the number of shares of stock or other
securities or property which the Warrantholder would have been entitled to
receive if the Warrantholder had been a holder of Common Stock on such record
date.

                (9)     No fractional shares of Common Stock are to be issued
upon the exercise of this Warrant, but the Company shall pay a cash adjustment
in respect of any

                                      -4-
<PAGE>   5

fraction of a share which would otherwise be issuable in an amount equal to the
same fraction of the fair market value per share of Common Stock on the date of
exercise, as reasonably determined by the Board of Directors; however, such
determination shall not take into any account any restraints or limitations on
the transferability of the Common Stock.

        4.      Notice of Adjustment; Notices. Whenever the Exercise Price or
number of shares purchasable hereunder will be adjusted, the Company at its
expense will promptly issue a certificate signed by an executive officer of the
Company setting forth, in reasonable detail, the event requiring the adjustment,
the amount of the adjustment, the method by which such adjustment was calculated
and the Exercise Price and number of shares purchasable hereunder after giving
effect to such adjustment, and will cause a copy of such certificate to be sent
to the Warrantholder.

        5.      Warrantholder Representation. The Warrantholder, by acceptance
hereof, acknowledges that this Warrant and Shares to be issued upon exercise
hereof, are being acquired solely for the Warrantholder's own account or for the
account of non-U.S. persons.

        6.      Transfer of Warrant. The Warrantholder will not offer, sell or
otherwise dispose of this Warrant or the Shares to be issued upon exercise
hereof except after providing the Company with a written opinion of legal
counsel, with such opinion shall be reasonably acceptable to the Company, that
such sale or disposition has been registered under, or qualifies for an
exemption from registration under, Securities Act of 1933, as amended (the
"Act") or other applicable federal or state securities laws and, if such
transfer occurs within six months of the date of this Warrant, that such sale or
disposition does not violate any integration provisions of the Act with regard
to the Company's IPO Qualified Financing, if any. In order to transfer this
Warrant, the Warrantholder must deliver to the Company this Warrant together
with the Assignment Form annexed hereto properly endorsed. Upon receipt thereof,
the Company will affect such transfer as promptly as practicable.
Notwithstanding anything to the contrary in this Warrant, the Warrantholder
agrees for a period of six months following receipt of this Warrant that it will
not transfer any portion of this Warrant to any person that is not a "qualified
institutional buyer" as that term is defined under Rule 144A of the Securities
Act (as hereinafter defined) or, if the Warrantholder is not a qualified
institutional buyer, to any person that is not an accredited investor as that
term is defined in Rule 501(a)(1), (a)(2), (a)(3), (a)(7) or (a)(8) under the
Securities Act with at least $35,000,000 of investment assets.

        7.      No Voting Rights, Etc. Prior to the proper exercise of this
Warrant, the Warrantholder, as such, is not entitled to vote or receive
dividends or be deemed to be a shareholder of the Company for any purposes, nor
may anything contained in this Warrant be construed to confer such rights upon
Warrantholder.

        8.      Registry of Warrant. The Company will maintain a registry
showing the name and address of the Warrantholder and the Company will be
entitled to rely in all

                                      -5-
<PAGE>   6

respects, prior to written notice to the contrary, upon such registry. The
Warrantholder is responsible for notifying the Company of any change of its
address.

        9.      Loss, Theft, Destruction or Mutilation of Warrant. Upon receipt
of evidence satisfactory to it the Company of the loss, theft, destruction or
mutilation of a Warrant or any warrant issued in exchange therefor and, if
requested in the case of any such loss, theft or destruction, upon delivery of
an indemnity bond or other agreement or security reasonably satisfactory to the
Company, or, in the case of any such mutilation, upon surrender and cancellation
of such warrant, the Company will issue a new warrant, of like tenor and amount
and dated the date of the original Warrant, in lieu of such lost, stolen,
destroyed or mutilated Warrant; provided, however, if any Warrant of which a
Warrantholder, its nominee, or any of its partners or affiliates is the
registered holder is lost, stolen or destroyed, the affidavit of the registered
holder setting forth the circumstances with respect to such loss, theft or
destruction shall be accepted as satisfactory evidence thereof, and no
indemnification bond or other security shall be required as a condition to the
execution and delivery by the Company of a new warrant in replacement of such
lost, stolen or destroyed warrant other than the registered holder's written
agreement to indemnify the Company.

        10.     Office for Exercise or Exchange. This Warrant may be surrendered
for exchange, transfer or exercise, in accordance with its terms, at the
principal office of the Company, or at such other office or such other office or
agency of the Company as it may designate in writing to the Warrantholder at its
address appearing on the Company's registry or other books.

        11.     Charges, Taxes and Expenses. Issuance of certificates to the
Warrantholder for Shares upon the exercise of this Warrant will be made without
charge to the Warrantholder for any issue or transfer tax or other incidental
expense in respect of the issuance of such certificates, all of which taxes and
expenses will be paid by the Company. However, if the certificates are to be
issued in a name or names other than the name of the Warrantholder, the Company
may require, as a condition to such issuance, the payment of a sum sufficient to
reimburse it for any transfer tax incidental thereto.

        13.     Cashless Exercise. In lieu of payment of the aggregate Exercise
Price, the Warrantholder may exercise this Warrant with respect to the Shares
that are then vested and exercisable, in whole or in part, by presentation and
surrender of this Warrant to the Company, together with a Cashless Exercise Form
attached hereto (or a reasonable facsimile thereof) duly executed (a "Cashless
Exercise"). Such presentation and surrender shall be deemed a waiver of the
Warrantholder's obligation to pay all or any portion of the aggregate Exercise
Price. In the event of a Cashless Exercise, the Warrantholder shall exchange
this Warrant for that number of shares of Common Stock determined by multiplying
the number of Shares being exercised by a fraction, the numerator of which shall
be the difference between the then current market price per share of the Common
Stock and the Exercise Price, and the denominator of which shall be the then
current market price per share of Common Stock. For purposes of any computation
under this Section 13, the then current market price per share of Common

                                      -6-
<PAGE>   7

Stock at any date shall be deemed to be the average for the five consecutive
business days immediately prior to the Cashless Exercise of the daily closing
prices of the Common Stock on the principal national securities exchange on
which the Common Stock is admitted to trading or listed, or if not listed or
admitted to trading on any such exchange, the closing prices as reported by the
Nasdaq National Market, or if not then listed on the Nasdaq National Market, the
average of the highest reported bid and lowest reported asked prices as reported
by the National Association of Securities Dealers, Inc. Automated Quotations
System ("NASDAQ") or if not then publicly traded, the fair market price of the
Common Stock as determined by the Board in its reasonable good faith judgment.

        14.     Same Day Exercise and Sale. In lieu of exercising this Warrant
as set forth herein, when permitted by law and applicable regulations (including
rules promulgated by the NASDAQ or the National Association of Securities
Dealers ("NASD")), the Warrantholder may pay the Exercise Price through a same
day sale commitment from the Warrantholder (and if applicable a broker-dealer
that is a member of the NASD ("NASD Dealer")) whereby the Warrantholder would
irrevocably elect to exercise the Warrant and to sell a portion of the shares so
purchased to pay for the Exercise Price and the Warrantholder (or if applicable,
the NASD Dealer) would commit upon sale (or, in the case of the NASD Dealer,
upon receipt) of such shares to forward the exercise price directly to Company.

        15.     Market Standoff. If requested by the Company and an underwriter
of Common Stock (or other securities of the Company), the Warrantholder shall
not sell or otherwise transfer or dispose of any shares of Common Stock or
Series A Preferred Stock (or other securities) held by the Warrantholder after
an exercise of this Warrant, other than distributions to limited partners,
affiliates or parent entities of the Warrantholder, during the one hundred
eighty (180) day period following the effective date of the initial registration
statement of the Company filed under the Act. The Company may impose
stop-transfer instructions with respect to the shares of Common Stock and Series
A Preferred Stock (or other securities of the Company) subject to the foregoing
restrictions until the end of such one hundred eighty (180) day period.

        16.     Miscellaneous.

                (a)     Governing Law. This Warrant constitutes a contract under
and will be construed in accordance with and governed by the internal laws of
the State of Delaware.

                (b)     Successors and Assigns. This Warrant is binding upon any
successors or assigns of the Company and the Warrantholder and of the Shares
issued or issuable upon the exercise hereof.

                (c)     Definition of Warrantholder. The term Warrantholder
means the Warrantholder named in the first paragraph of this Warrant and any
successor or

                                      -7-
<PAGE>   8

permitted assign of such Warrantholder known to the Company and reflected on the
Company's registry as the holder of this Warrant.

                (d)     Amendments. This Warrant may be amended and the
observance of any term of this Warrant may be waived only with the written
consent of the Company and the Warrantholder.

                (e)     Notice. Any notice required or permitted under this
Warrant will be deemed effectively given upon personal delivery, delivery by
recognized international express courier or upon deposit with the United States
Post Office, by certified mail, postage prepaid and addressed to the party to be
notified at the address indicated below for such party, or at such other address
as such other party may designate by ten-day advance written notice.

                (f)     Acceptance. Receipt of this Warrant by the Warrantholder
constitutes acceptance of and agreement to the foregoing terms and conditions.

                (g)     Integration with Purchase Agreement. This Warrant is
subject to and shall be governed by the terms and conditions of the Note and
Warrant Purchase Agreement dated as of November 29, , 2000.

           [The remainder of this page is left intentionally blank.]

                                      -8-
<PAGE>   9

        This Warrant Agreement has been duly executed on the date first written
above.

                                     YELLOWBRIX, INC., a Delaware corporation

                                     By:   /s/ David C. Hoppmann
                                           -----------------
                                           David C. Hoppmann
                                           Chief Executive Officer

                                     Address: 66 Canal Center Plaza, Suite 700
                                              Alexandria, Virginia 22314

Agreed to and accepted by:

ABN AMRO Capital (USA) Inc.

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

Address:
208 South LaSalle Street
Suite 1000
Chicago, IL 60604

                                      -9-
<PAGE>   10

                                                                      SCHEDULE A

                                LISTING OF SHARES
                        ISSUABLE UPON EXERCISE OF WARRANT

<TABLE>
<CAPTION>
--------------------------------------------------------------------------------------
Date of Issuance                        Number of Shares Issuable Upon Exercise
--------------------------------------------------------------------------------------
<S>                                     <C>
November 29, 2000                                   188,172 Shares
--------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------
</TABLE>

Agreed and Acknowledged:

YellowBrix, Inc.                               ABN AMRO Capital (USA) Inc.

By:  /s/ David C. Hoppmann                     By:
    ------------------------                       ------------------------
David C. Hoppmann                              Name:
Chief Executive Officer                        Title:

Date:                                          Date:
      ---------------------                          ------------------------

                                      -10-
<PAGE>   11

                               NOTICE OF EXERCISE

To:     YELLOWBRIX, INC.

        1.      The undersigned hereby elects to purchase __________________
shares of Common Stock/ Series A Preferred Stock ("Stock") of YELLOWBRIX, INC.
(the "Company") pursuant to the terms of the attached Warrant, and tenders
herewith payment of the purchase price, together with an Investment
Representation Statement (see attached form).

        2.      The shares of Stock to be received by the undersigned upon
exercise of the Warrant are being acquired for its own account, not as a nominee
or agent, and not with a view to resale or distribution of any part thereof, and
the undersigned has no present intention of selling, granting any participation
in, or otherwise distributing the same. The undersigned further represents that
it does not have any contract, undertaking, agreement or arrangement with any
person to sell, transfer or grant participation to such person or to any third
person, with respect to the Stock. The undersigned believes it has received all
the information it considers necessary or appropriate for deciding whether to
purchase the Stock.

        3.      The undersigned understands that the shares of Stock and the
shares of the Company's Common Stock into which the Stock is convertible are
characterized as "restricted securities" under the federal securities laws
inasmuch as they are being acquired from the Company in transactions not
involving a public offering and that under such laws and applicable regulations
such securities may be resold without registration under the Securities Act of
1933, as amended (the "Act"), only in certain limited circumstances. In this
connection, the undersigned represents that it is familiar with Rule 144
promulgated under the Act, as presently in effect, and understandings the resale
limitations imposed thereby and by the Act.

        4.      The undersigned is an "accredited investor" as defined in Rule
502 of Regulation D under the Act or is not a "U.S. Person" as defined in Rule
902 regulations under the Act.

        5.      The undersigned understands the instruments evidencing the Stock
may bear one or all of the following legends:

                (a)     "THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE
        SECURITIES ACT OF 1933, AS AMENDED. THEY MAY NOT BE SOLD, OFFERED FOR
        SALE, PLEDGED, OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE
        REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL
        SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED UNDER
        THE SECURITIES ACT OF 1933, AS AMENDED."

                                      -11-
<PAGE>   12

                (b)     Any legend required by applicable state law.

        5.      Please issue a certificate or certificates representing said
shares of Stock in the name set forth below.

        ------------------------------
        [Please type or print name]

        6.      Please issue a new Warrant for the unexercised portion of the
attached Warrant in the name set forth below.

        [Please type or print name]

                                        --------------------------------

                                        -------------------------------------
                                        Name:
                                        Title:

Date:

                                      -12-
<PAGE>   13

                                YELLOWBRIX, INC.
                             CASHLESS EXERCISE FORM

        (To be executed upon exercise of Warrant pursuant to Section 13)

        The undersigned hereby irrevocably elects to surrender _________________
shares purchasable under this Warrant for such shares of Common Stock / Series A
Preferred Stock issuable in exchange therefor pursuant to the Cashless Exercise
provisions of the within Warrant, as provided for in Section 13 of such Warrant.

        Please issue a certificate or certificates for such Common Stock /
Series A Preferred Stock in the name of, and pay cash for fractional shares in
the name of:

--------------------------------------------------------------------------------
(Please print name, address, and social security number/tax identification
number:)

--------------------------------------------------------------------------------

and, if said number of shares of Common Stock / Series A Preferred Stock shall
not be all the shares of Common Stock / Series A Preferred Stock purchasable
thereunder, that a new Warrant for the balance remaining of the shares of Common
Stock / Series A Preferred Stock purchasable under the within Warrant be
registered in the name of the undersigned Warrantholder or his or her Assignee
as below indicated and delivered to the address stated below.

Dated:
       -------------------------

Name of Holder
or Assignee:

--------------------------------------------------------------------------------
                                 (Please print)

Address:
        ---------------------------------------------------------------------

Signature:
          -------------------------------------------------------------------

NOTE: The above signature must correspond exactly with the name on the first
page of this Warrant or with the name of the assignee appearing in the
assignment form below.

                                      -13-
<PAGE>   14

                                 ASSIGNMENT FORM

                (To assign the foregoing Warrant, execute this form and supply
                required information. Do not use this form to purchase shares.)

        FOR VALUE RECEIVED, the foregoing Warrant and all rights evidenced
thereby are hereby assigned to

                        ------------------------------
                        [Please type or print name.]

whose address is
                                [Please type or print address.]

                                     -----------------------------

                                     By:
                                     Name:
                                     Title:

Date:

Signature Guaranteed:

NOTE: The signature to this Assignment Form must correspond with the name as it
appears on the face of the Warrant, without alteration or enlargement or any
change whatever, and must be guaranteed by a bank or trust company. Officers of
a corporation and those acting in a fiduciary or other representative capacity
should file proper evidence of authority to assign the foregoing Warrant.

                                      -14-
<PAGE>   15

                       INVESTMENT REPRESENTATION STATEMENT

PURCHASER:      ABN AMRO Capital (USA) Inc.
                ---------------------------------------

COMPANY:        YELLOWBRIX, INC.

SECURITIES:     Warrant to purchase 188,172 shares of Common Stock /
                Series A Preferred Stock

DATE:

In connection with the purchase of the above-listed Securities, the undersigned,
the Purchaser, represents to the Company the following:

                (a)     The undersigned is sufficiently aware of the Company's
business affairs and financial condition to reach an informed and knowledgeable
decision to acquire the Securities. The undersigned is purchasing these
Securities for its own account for investment purposes only and not with a view
to, or for the resale in connection with, any "distribution" thereof for
purposes of the Securities Act of 1933, as amended (the "Securities Act").

                (b)     The undersigned understands that the Securities have not
been registered under the Securities Act in reliance upon a specific exemption
therefrom, which exemption depends upon, among other things, the bona fide
nature of its investment intent as expressed herein. In this connection, the
undersigned understands that, in the view of the Securities and Exchange
Commission (the "SEC"), the statutory basis for such exemption may be
unavailable if its representation was predicated solely upon a present intention
to hold these Securities for the minimum capital gains period specified under
tax statutes for a deferred sale, for or until an increase or decrease in the
market price of the Securities, or for a period of one year or any other fixed
period in the future.

                (c)     The undersigned further understands that the Securities
must be held indefinitely unless subsequently registered under the Securities
Act or unless an exemption from registration is otherwise available (such as
Rule 144 under the Securities Act). In addition, the undersigned understands
that the certificate evidencing the Securities may be imprinted with a legend
which prohibits the transfer of the Securities unless they are registered or an
exemption from such registration available.

                (d)     The undersigned is familiar with the provisions of Rule
144, promulgated under the Securities Act, which, in substance, permits limited
public resale of "restricted securities" acquired, directly or indirectly, from
the issuer thereof (or from an affiliate of such issuer), in a non-public
offering subject to the satisfaction of certain conditions, including, among
other things: (1) The availability of certain public

                                      -15-
<PAGE>   16

information about the Company; (2) the resale occurring not less than two years
after the party has purchased, and made full payment for, within the meaning of
Rule 144, the securities to be sold; and, in the case of an affiliate, or of a
non-affiliate who has held the securities less than three years; and (3) the
sale being made through a broker in an unsolicited "broker's transaction" or in
transactions directly with a market maker, as said term is defined under the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the amount
of securities being sold during any three month period not exceeding the
specified limitation stated therein, if applicable. There can be no assurances
that the requirements of Rule 144 will be met, or that the Securities will ever
be saleable.

                (e)     The undersigned further understands that at the time the
undersigned wishes to sell the Securities there may be no public market upon
which to make such a sale, and that, even if such a public market then exists,
the Company may not be satisfying the current public information requirements of
Rule 144, and that, in such event, the undersigned would be precluded from
selling the Securities under Rule 144 even if the two-year minimum holding
period has been satisfied.

                (f)     The undersigned further understands that in the event
all of the applicable requirements of Rule 144 are not satisfied registration
under the Securities Act, compliance with some other registration exemption or
the notification to the Company of the proposed disposition by it and the
furnishing to the Company of (i) reasonably detailed information regarding the
disposition, and (ii) opinion of its counsel to the effect that such disposition
will not require registration (the undersigned understands such counsel's
opinion must concur with the opinion by counsel for the Company and the
undersigned must have been informed of such compliance) will be required.

                                        Signature of Purchaser:

                                        ---------------------

                                        By:
                                              Name:
                                              Title:

                                      -16-

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