Document:

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                                                                   Exhibit 10.17

THIS NOTE AND THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER
THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY APPLICABLE STATE SECURITIES LAWS
(THE "ACTS"). THEY MAY NOT BE SOLD, OFFERED FOR SALE, TRANSFERRED, PLEDGED,
HYPOTHECATED OR OTHERWISE DISPOSED OF WITHOUT A REGISTRATION STATEMENT IN EFFECT
WITH RESPECT TO THE ACTS OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO
BORROWER THAT SUCH REGISTRATION IS NOT REQUIRED.

                           CONVERTIBLE PROMISSORY NOTE

$2,000,000                                                        APRIL __, 2001

         FOR VALUE RECEIVED, LEARN2.COM, INC., a Delaware corporation having its
principal executive offices at 1311 Mamaroneck Avenue, Suite 210, White Plains,
New York 10605 ("Borrower") hereby promises to pay to the order of E-STAMP
CORPORATION, a Delaware corporation having its principal executive offices at
2051 Stierlin Court, Mountain View, California 94043 ("Holder"), the principal
sum of TWO MILLION DOLLARS ($2,000,000) and, together with such amount, all
interest accrued hereunder as provided herein. This Convertible Promissory Note
is hereinafter referred to as this "Note".

         1. LOAN AND TERMS OF PAYMENT.

                  1.1 THE LOAN. Borrower acknowledges indebtedness to Holder in
the amount of Two Million Dollars ($2,000,000) (the "Loan").

                  1.2 INTEREST. The Loan shall accrue interest from the date
hereof until the Loan is paid in full at a rate equal to ten percent (10%) per
annum (based on a three hundred and sixty five (365) day year).

                  1.3 PRINCIPAL AND INTEREST REPAYMENT. Subject to the
provisions of Sections 2 and 4 hereof, the principal amount of this Note,
together with accrued and unpaid interest thereon, shall be due and payable on
April 30, 2002 (the "Maturity Date"). Subject to the provisions of Section 4
hereof, no payment of interest shall be made until the Maturity Date.

                  1.4 PARI PASSU. Subject to the Security Agreement, this Note
shall rank pari passu with and equal in right with the indebtedness of Borrower
pursuant to that certain 6% Convertible Debenture, dated March 10, 2000 (the
"RGC Indebtedness"), issued to RGC International Investors, LDC in the aggregate
principal amount of $10,000,000.

                  1.5 FORM OF PAYMENT. Both the principal amount of this Note,
and all interest accrued thereon, shall be paid in such currency of the United
States of America as shall be legal tender at the time of payment, and all
payments or prepayments of principal and interest and other sums due pursuant to
this Note shall be made by certified check to Holder at its address set forth
above, or in immediately available funds by wire transfer to Holder's account at
such bank as Holder shall have previously designated to Borrower. When any date
on which principal and interest are due and payable falls on a Saturday, Sunday
or legal holiday, then such payment shall be due and
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payable on the first business day immediately following such date and interest
shall be payable at the rate set forth herein for the period of such extension.

                  1.6 OPTIONAL PREPAYMENT. Subject to earlier conversion
pursuant to Section 2, this Note may be prepaid by Borrower, in whole or in
part, at any time or from time to time, without premium or penalty, upon thirty
(30) days' prior written notice by Borrower to Holder. All prepayments made on
this Note shall be applied first to the payment of all unpaid interest accrued
on this Note, and then to the outstanding and unpaid principal amount of this
Note as of the date of the payment.

         2. CONVERSION.

                  2.1 RIGHTS, PRIVILEGES AND PREFERENCES. The Series E Stock
shall have the rights, privileges and preferences set forth in ANNEX A hereto.

                  2.2 RIGHT OF CONVERSION. Subject to and in compliance with the
provisions of this Section 2, Holder may, at its option and at any time, convert
all, or any portion of, the principal amount of this Note, together with accrued
and unpaid interest thereon, into shares of Series E Convertible Preferred Stock
of Borrower (the "Series E Stock") at a per share conversion price equal to
$1000. In the event that Holder desires to convert this Note into shares of
Series E Stock, Holder shall surrender this Note at the office of Borrower and
shall give written notice to Borrower at such office that it elects to convert
the same. Thereupon, Borrower shall promptly issue and deliver to Holder a
certificate or certificates for the number of shares of Series E Stock to which
Holder is entitled. Such conversion shall be deemed to have been made at the
close of business on the date of such surrender of this Note and notice, and the
person entitled to receive the shares of Series E Stock issuable upon such
conversion shall be treated for all purposes as the record holder of such shares
of Series E Stock on such date.

         3. COVENANTS OF BORROWER.

                  3.1 LIMITATIONS ON ADDITIONAL INDEBTEDNESS. So long as
Borrower shall have any obligation under this Note, Borrower shall not, without
the Holder's written consent, create, incur, assume or suffer to exist any
liability for borrowed money, except (a) borrowings in existence or committed on
the date hereof, (b) indebtedness to trade creditors incurred in the ordinary
course of business, (c) borrowings, the proceeds of which shall be used to repay
this Note, or (d) asset based borrowings involving accounts receivable or
inventory financing or leaseholds.

                  3.2 RESERVATION OF SERIES E STOCK. So long as Borrower shall
have any obligation under this Note, Borrower shall reserve from its authorized
but unissued Preferred Stock a sufficient number of shares of Series E Stock to
provide for the issuance of Series E Stock upon the conversion of this Note and
shall reserve from its authorized and unissued Common Stock a sufficient number
of shares to provide for the issuance of Common Stock issuable upon conversion
of those shares of Series E Stock.

                  3.3 NASDAQ APPROVAL. If the issuance of the Series E Stock
pursuant to the provisions of Section 2 above would require approval of
Borrower's stockholders, or the Nasdaq

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Stock Market or other governmental or regulatory authority, Borrower shall
promptly make such filings and take such other actions as are necessary or
advisable to obtain such approval or an exemption therefrom. Pending such
approval or exemption therefrom, Holder may nonetheless convert that portion of
this Note that is then convertible into the maximum number of shares of Series E
Stock permitted by applicable law and the applicable rules and regulations of
the National Stock Market.

                  3.4 NOTIFICATION OF EVENTS OF DEFAULT. Borrower shall
immediately notify Borrower of the occurrence of an Event of Default described
in subsection 4.1 below.

         4. EVENTS OF DEFAULT.

                  4.1 DEFINITION OF EVENT OF DEFAULT. Any one or more of the
following events shall constitute an Event of Default:

                           (a) Borrower fails to pay on the due date any
principal or interest on this Note, or any other amount due under this Note,
when and as the same shall become due and payable, whether at the due date
thereof or at the date fixed for prepayment thereof or by acceleration thereof
or otherwise, and such default shall continue unremedied for a period of five
(5) business days;

                           (b) Borrower fails to perform or observe any other
covenant or agreement contained in this Note to be performed by it, and such
breach is not cured or such failure continues for a period of ten (10) business
days after receipt of written notice by Borrower from the Holder stating that
such notice is notice of an Event of Default.

                           (c) A default or event of default shall have occurred
with respect to the RGC Indebtedness, which default shall not have been waived
or cured within any applicable grace period provided in the RGC Indebtedness,
and which results in the acceleration of the maturity date thereof;

                           (d) An involuntary proceeding shall be commenced or
an involuntary petition shall be filed in a court of competent jurisdiction
seeking (i) relief in respect of Borrower, or of a substantial part of the
property or assets of Borrower, under Title 11 of the United States Code, as now
constituted or hereafter amended, or any other federal, state or foreign
bankruptcy, insolvency, receivership or similar law, (ii) the appointment of a
receiver, trustee, custodian, sequestrator, conservator or similar official for
Borrower or for a substantial part of the property or assets of Borrower or
(iii) the winding-up or liquidation of Borrower, and any such proceeding or
petition shall continue undismissed for sixty (60) days or an order or decree
approving or ordering any of the foregoing shall be entered;

                           (e) Borrower shall (i) voluntarily commence any
proceeding or file any petition seeking relief under Title 11 of the United
States Code, as now constituted or hereafter amended, or any other federal,
state or foreign bankruptcy, insolvency, receivership or similar law, (ii)
consent to the institution of, or fail to contest in a timely and appropriate
manner, any proceeding or the filing of any petition described in (d) above,
(iii) apply for or consent to the appointment of a receiver, trustee, custodian,
sequestrator, conservator or similar official for Borrower or for a

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substantial part of the property or assets of Borrower, (iv) file an answer
admitting the material allegations of a petition filed against it in any such
proceeding, (v) make a general assignment for the benefit of creditors, (vi)
become unable, admit in writing its inability or fail generally to pay its debts
as and when they become due or (vii) take any action for the purpose of
effecting any of the foregoing;

                           (f) The Board of Directors of Borrower shall have
withdrawn, modified or changed in a manner adverse to Holder its approval or
recommendation of the Agreement and Plan of Merger between Borrower and Holder
dated April 19, 2001 (the "Merger Agreement") or the merger of Borrower and
Holder (the "Merger"), or shall have recommended an Acquisition Proposal (as
defined in the Merger Agreement) relating to Borrower with a person other than
Holder;

                           (g) Borrower shall have executed an agreement in
principle or definitive agreement relating to an Acquisition Proposal (as
defined in the Merger Agreement) relating to Borrower with a person other than
Holder; or

                           (h) Borrower shall have breached any representation,
warranty, covenant or other agreement contained in the Merger Agreement, which
breach results in a Material Adverse Effect (as defined in the Merger Agreement)
on Borrower and cannot be or has not been cured within fifteen (15) days after
the giving of written notice by Holder to Borrower, and which results in
Holder's termination of the Merger Agreement.

                  4.2 RIGHTS UPON EVENT OF DEFAULT. Upon the occurrence of any
Event of Default, Holder, at its option, may declare the entire principal amount
of this Note then outstanding, together with accrued and unpaid interest
thereon, (i) immediately due and payable in the event of any Event of Default
other than an Event of Default described in subsection 4.1(h) above, or (ii) due
and payable sixty days after the termination of the Merger Agreement upon the
occurrence of an Event of Default described in subsection 4.1(h), in each case
without presentment, demand, protest or notice or other formality of any kind;
provided that, upon the occurrence of an Event of Default described in
subsections 4.1(d) and (e) above, this Note shall automatically become due and
payable without presentment, demand, protest or notice or other formality of any
kind.

                  4.3 OTHER REMEDIES. If any Event of Default has occurred and
is continuing, irrespective of whether this Note has become or has been declared
immediately due and payable under Section 4.2, the Holder may proceed to protect
and enforce its rights by an action at law, suit in equity or other appropriate
proceeding, whether for the specific performance of any agreement contained
herein, or for an injunction against a violation of any of the terms hereof or
thereof, or in aid of the exercise of any power granted hereby or thereby or by
law or otherwise.

         5. RESTRICTIONS ON TRANSFER.

                  This Note and the Series E Stock issuable upon conversion
hereof shall not be transferable prior to the termination of the Merger
Agreement.

         6. MISCELLANEOUS.

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                  6.1 UNCONDITIONAL OBLIGATION; WAIVERS. The obligations of
Borrower to make the payments provided for in this Note are absolute and
unconditional and not subject to any defense, set-off, counterclaim, rescission,
recoupment or adjustment whatsoever. Borrower hereby waives presentment and
demand for payment, notice of non-payment, notice of dishonor, protest, notice
of protest, bringing of suit and diligence in taking any action to collect any
amount called for under this Note, and shall be directly and primarily liable
for the payment of all amounts owing and to be owing hereon, regardless of and
without any notice, diligence, act or omission with respect to the collection of
any amount called for hereunder. No waiver of any provision of this Note shall
be effective unless in writing, signed by Holder, and a waiver of any one
provision shall not constitute a waiver of any other terms hereof, or otherwise
release or discharge the liability of Borrower under this Note. No failure to
exercise and no delay in exercising, on the part of Holder, any right, power or
privilege under this Note shall operate as a waiver thereof nor shall partial
exercise of any right, power or privilege. The rights and remedies herein
provided are cumulative and are not exclusive of any rights or remedies provided
by law.

                  6.2 NOTICES AND ADDRESSES. Any notice, demand, request,
waiver, or other communication under this Note shall be in writing and shall be
deemed to have been duly given on the date of service, if personally served or
sent by telecopy; on the business day after notice is delivered to a courier or
mailed by express mail, if sent by courier delivery service or express mail for
next day delivery; and on the third day after mailing, if mailed to the party to
whom notice is to be given, by first class mail, registered, return receipt
requested, postage prepaid and addressed as follows:

                 To Borrower:               Learn2.com, Inc.
                                            1311 Mamaroneck Avenue, Suite 210
                                            Mamaroneck, New York 10605
                                            Fax: (914) 682-4440
                                            Attention: President

                 with a copy to:            Swidler Berlin Shereff Friedman, LLP
                                            The Chrysler Building
                                            405 Lexington Avenue
                                            New York, New York 10174
                                            Fax: (212) 891-9598
                                            Attention: Gerald Adler, Esq.

                 To Holder:                 E-Stamp Corporation
                                            2051 Stierlin Court
                                            Mountain View, California 94043
                                            Fax: (650) 919-7533
                                            Attention: President

                 with a copy to:            Wilson Sonsini Goodrich & Rosati
                                            650 Page Mill Road
                                            Palo Alto, California 94304-1050
                                            Fax: (650) 493-6811

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                                            Attention: N. Anthony Jeffries, Esq.

                  6.3 LOST, STOLEN OR MUTILATED NOTE. Upon receipt by Borrower
of evidence satisfactory to it of the loss, theft, destruction or mutilation of
this Note or any Note exchanged for it, and (in the case of loss, theft or
destruction) of unsecured indemnity satisfactory to it, and upon reimbursement
to Borrower of all reasonable expenses incidental thereto, and upon surrender
and cancellation of such Note, if mutilated, Borrower will make and deliver in
lieu of such Note a new Note of like tenor and unpaid principal amount and dated
as of the original date of this Note.

                  6.4 SEVERABILITY; BINDING EFFECT. Any provision of this Note
which is invalid or unenforceable in any jurisdiction shall, as to such
jurisdiction, be ineffective to the extent of such invalidity or
unenforceability without rendering invalid or unenforceable the remaining terms
and provisions of this Note or affecting the validity or unenforceability of any
of the terms and provisions of this Note in any other jurisdiction. This Note
shall be binding upon and inure to the benefit of the parties hereto and their
successors and assigns.

                  6.5 EXPENSES. If any action is instituted to collect this
Note, Borrower promises to pay all costs and expenses, including without
limitation, reasonable attorneys' fees and costs, incurred in connection with
such action.

                  6.6 USURY. Anything in this Note to the contrary
notwithstanding, it is expressly stipulated and agreed that the intent of
Borrower and the Holder is to comply at all times with all usury and other laws
relating to this Note. If the laws of the State of Delaware or any other
jurisdiction would now or hereafter render usurious, or are revised, repealed or
judicially interpreted, so as to render usurious, the indebtedness evidenced by
this Note, then it is the Borrower's and the Holder's express intent that all
excess amounts theretofore collected by the Holder be credited to the principal
balance of this Note (or, if the Note has been paid in full, refunded to the
Borrower), and the provisions of this Note immediately be deemed reformed and
the amounts therefor collectible hereunder reduced, without the necessity of
execution of any new document, so as to comply with the then applicable law, but
so as to permit the recovery of the fullest amount otherwise called for
hereunder.

                  6.7 GOVERNING LAW. This Note shall be construed in accordance
with, and governed by, the laws of the State of Delaware without regard to
principles of conflicts of law.

                  6.8 AMENDMENTS. This Note cannot be changed orally or
terminated orally. Any amendment of, or supplement to or other modification of
this Note must be in a written instrument executed by both parties hereto.

                  6.9 SECTION HEADINGS. Section headings herein have been
inserted for reference only and shall not be deemed to limit or otherwise
affect, in any matter, or be deemed to interpret in whole or in part any of the
terms or provisions of this Note.

                     [THIS SPACE INTENTIONALLY LEFT BLANK.]

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         IN WITNESS WHEREOF, this Note has been executed and delivered as of the
date specified above.

                                        LEARN2.COM, INC.

                                        By:
                                           -------------------------------------

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

                                        Title:
                                              ----------------------------------<PAGE>

                                                                   Exhibit 10.18

                          REGISTRATION RIGHTS AGREEMENT

            REGISTRATION RIGHTS AGREEMENT (this "AGREEMENT"), dated as of April
25, 2001, by and among Learn2.com, Inc., a Delaware corporation with
headquarters located at 1311 Mamaroneck Avenue, Suite 210, New York, New York
10605 (the "COMPANY"), and E-Stamp Corporation, a Delaware corporation with
headquarters located at 2051 Stierlin Court, Mountain View, California 94043
(the "E-STAMP").

            WHEREAS:

      A.    In connection with that certain Agreement and Plan of Merger by and
among the parties hereto dated April 19, 2001 (the "MERGER AGREEMENT"), the
Company has agreed to issue and deliver to E-Stamp, and E-Stamp has agreed to
purchase and accept from the Company, in a transaction exempt from registration
under the Securities Act of 1933, as amended, and the rules and regulations
thereunder, or any similar successor statute (collectively, the "1933 ACT"), a
note, in the form attached hereto as ANNEX A (the "CONVERTIBLE NOTE"), in
exchange for an aggregate cash amount of $2,000,000 (the "PRIVATE PLACEMENT");

      B.    Subject to and in connection with the provisions of the Convertible
Note, E-Stamp may, at its option and at any time, convert all, or any portion
of, the principal amount of the Convertible Note, together with accrued and
unpaid interest thereon, into shares of Series E Convertible Preferred Stock of
the Company (the "SERIES E STOCK"); and

C.    The Company has agreed to provide certain registration rights under the
1933 Act and applicable state securities laws;

            NOW, THEREFORE, in consideration of the premises and the mutual
covenants contained herein and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the Company and
E-Stamp hereby agree as follows:

            1. DEFINITIONS.

               a. As used in this Agreement, the following terms shall have the
following meanings:

                  (i) "INVESTORS" means E-Stamp and any transferee or assignee
who agrees to become bound by the provisions of this Agreement in accordance
with Section 9 hereof.

                  (ii) "REGISTER," "REGISTERED," and "REGISTRATION" refer to a
registration effected by preparing and filing a Registration Statement or
Statements in compliance with the 1933 Act and pursuant to Rule 415 under the
1933 Act or any successor rule providing for offering securities on a continuous
basis ("RULE 415"), and the declaration or ordering of effectiveness of such
Registration Statement by the United States Securities and Exchange Commission
(the "SEC").

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                  (iii) "REGISTRABLE SECURITIES" means the shares of the
Company's common stock, par value $0.01 per share ("COMMON STOCK"), to be issued
to E-Stamp upon the conversion of the Series E Stock subject to and in
connection with the provisions of the Certificate of Designations, Preferences
and Rights of Series E Preferred Stock of the Company of even date herewith (the
"CERTIFICATE OF DESIGNATIONS"), and any additional shares of Common Stock issued
in respect of such shares as a result of a stock split, stock dividend or
similar event.

                  (iv) "REGISTRATION STATEMENT(S)" means a registration
statement(s) of the Company under the 1933 Act.

               b. Capitalized terms used herein and not otherwise defined herein
shall have the respective meanings set forth in the Merger Agreement.

            2. REGISTRATION.

               a. MANDATORY REGISTRATION. The Company shall prepare, and, on or
prior to the date (the "FILING DATE") which is one hundred twenty (120) days
after the date of the termination of the Merger (the "TERMINATION DATE") subject
to and in connection with the provisions of the Merger Agreement, file with the
SEC a Registration Statement on Form S-3 (or, if Form S-3 is not then available,
on such form of Registration Statement as is then available to effect a
registration of the Registrable Securities, subject to the consent of E-Stamp,
which consent will not be unreasonably withheld) covering the resale of the
Registrable Securities, which Registration Statement, to the extent allowable
under the 1933 Act and the rules and regulations promulgated thereunder
(including Rule 416), shall state that such Registration Statement also covers
such indeterminate number of additional shares of Common Stock as may become
issuable to prevent dilution resulting from stock splits, stock dividends or
similar transactions. The Registration Statement (and each amendment or
supplement thereto, and each request for acceleration of effectiveness thereof)
shall be provided to (and subject to the reasonable approval of) E-Stamp and its
counsel prior to its filing or other submission; PROVIDED, HOWEVER, that the
"Selling Stockholder" and "Plan of Distribution" sections of the Registration
Statement shall comply in all material respects with the information provided by
the Investors pursuant to Section 4(a) hereof. The Company shall use its
reasonable best efforts to obtain effectiveness of the Registration Statement as
soon as practicable, but in any event not later than one hundred eighty (180)
days after the Termination Date.

            b. PIGGY-BACK REGISTRATIONS. Subject to the last sentence of this
Section 2(b), if at any time prior to the expiration of the Registration Period
(as hereinafter defined) the Company shall determine to file with the SEC a
Registration Statement relating to an offering for its own account or the
account of others under the 1933 Act of any of its equity securities (other than
on Form S-4 or Form S-8 or their then equivalents relating to equity securities
to be issued solely in connection with any acquisition of any entity or business
or equity securities issuable in connection with stock option or other employee
benefit plans), the Company shall send to each Investor who is entitled to
registration rights under this Section 2(b) written notice of such determination
and, if within fifteen (15) days after the effective date of such notice, such
Investor shall so request in writing, the Company shall include in such

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Registration Statement all or any part of the Registrable Securities such
Investor requests to be registered, except that if, in connection with any
underwritten public offering for the account of the Company, the managing
underwriter(s) thereof shall impose a limitation on the number of shares of
Common Stock which may be included in the Registration Statement because, in
such underwriter(s)' judgment, marketing or other factors dictate such
limitation is necessary to facilitate public distribution, then the Company
shall be obligated to include in such Registration Statement only such limited
portion of the Registrable Securities with respect to which such Investor has
requested inclusion hereunder as the underwriter shall permit. Any exclusion of
Registrable Securities shall be made pro rata among the Investors seeking to
include Registrable Securities in proportion to the number of Registrable
Securities sought to be included by such Investors; PROVIDED, HOWEVER, that the
Company shall not exclude any Registrable Securities unless the Company has
first excluded all outstanding securities, the holders of which are not entitled
by contract to inclusion of such securities in such Registration Statement or
are not entitled to pro rata inclusion with the Registrable Securities; and
PROVIDED, FURTHER, HOWEVER, that, after giving effect to the immediately
preceding proviso, any exclusion of Registrable Securities shall be made pro
rata with holders of other securities having the contractual right to include
such securities in the Registration Statement other than holders of securities
entitled to inclusion of their securities in such Registration Statement by
reason of demand registration rights. No right to registration of Registrable
Securities under this Section 2(b) shall be construed to limit any registration
required under Section 2(a) hereof. If an offering in connection with which an
Investor is entitled to registration under this Section 2(b) is an underwritten
offering, then each Investor whose Registrable Securities are included in such
Registration Statement shall, unless otherwise agreed by the Company, offer and
sell such Registrable Securities in an underwritten offering using the same
underwriter or underwriters and, subject to the provisions of this Agreement, on
the same terms and conditions as other shares of Common Stock included in such
underwritten offering. Notwithstanding anything to the contrary set forth
herein, the registration rights of the Investors pursuant to this Section 2(b)
shall only be available in the event the Company fails to timely file, obtain
effectiveness or maintain effectiveness of any Registration Statement to be
filed pursuant to Section 2(a) in accordance with the terms of this Agreement.

               c. ELIGIBILITY FOR FORM S-3. The Company represents and warrants
that it meets the registrant eligibility and transaction requirements for the
use of Form S-3 for registration of the sale by E-Stamp and any other Investors
of the Registrable Securities and the Company shall file all reports required to
be filed by the Company with the SEC in a timely manner so as to maintain such
eligibility for the use of Form S-3.

            3. OBLIGATIONS OF THE COMPANY.

            In connection with the registration of the Registrable Securities,
the Company shall have the following obligations:

               a. The Company shall prepare promptly, and file with the SEC as
soon as reasonably practicable after the Termination Date (but no later than the
Filing Date), a Registration Statement with respect to the number of Registrable
Securities provided in Section 2(a), and thereafter use its best efforts to
cause such Registration Statement relating to Registrable Securities to become
effective as soon as reasonably practicable after such filing (but

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in no event later than one hundred eighty (180) days after the Termination
Date), and keep the Registration Statement effective pursuant to Rule 415 at all
times until such date as is the earlier of (i) the date on which all of the
Registrable Securities have been sold and (ii) the date on which the Registrable
Securities (in the reasonable opinion of counsel to E-Stamp, which opinion shall
not be unreasonably withheld or delayed) may be immediately sold to the public
without registration or restriction (including without limitation as to volume
by each holder thereof) under the 1933 Act (the "REGISTRATION PERIOD"), which
Registration Statement (including any amendments or supplements thereto and
prospectuses contained therein) shall not contain any untrue statement of a
material fact or omit to state a material fact required to be stated therein, or
necessary to make the statements therein not misleading.

               b. The Company shall prepare and file with the SEC such
amendments (including post-effective amendments) and supplements to the
Registration Statements and the prospectus used in connection with the
Registration Statements as may be necessary to keep the Registration Statements
effective at all times during the Registration Period, and, during such period,
comply with the provisions of the 1933 Act with respect to the disposition of
all Registrable Securities of the Company covered by the Registration Statements
until such time as all of such Registrable Securities have been disposed of in
accordance with the intended methods of disposition by the seller or sellers
thereof as set forth in the Registration Statements.

               c. The Company shall furnish to each Investor whose Registrable
Securities are included in a Registration Statement and its legal counsel (i)
promptly after the same is prepared and publicly distributed, filed with the
SEC, or received by the Company, one copy of each Registration Statement and any
amendment thereto, each preliminary prospectus and prospectus and each amendment
or supplement thereto, and, in the case of the Registration Statement referred
to in Section 2(a), each letter written by or on behalf of the Company to the
SEC or the staff of the SEC, and each item of correspondence from the SEC or the
staff of the SEC, in each case relating to such Registration Statement (other
than any portion thereof which contains information for which the Company has
sought confidential treatment or which the Company reasonably deems to be
material, non-public information), and (ii) such number of copies of a
prospectus, including a preliminary prospectus, and all amendments and
supplements thereto and such other documents as such Investor may reasonably
request in order to facilitate the disposition of the Registrable Securities
owned by such Investor. The Company will immediately notify each Investor by
facsimile of the effectiveness of each Registration Statement or any
post-effective amendment. The Company will promptly respond to any and all
comments received from the SEC, with a view towards causing each Registration
Statement or any amendment thereto to be declared effective by the SEC as soon
as practicable and shall file an acceleration request as soon as practicable,
but no later than three (3) business days (the "ACCELERATION REQUEST DEADLINE"),
following the resolution or clearance of all SEC comments or, if applicable,
following notification by the SEC that any such Registration Statement or any
amendment thereto will not be subject to review.

               d. The Company shall use reasonable efforts to (i) register and
qualify the Registrable Securities covered by the Registration Statements under
such other securities or "blue sky" laws of such jurisdictions in the United
States as the Investors who hold a majority in interest of the Registrable
Securities being offered reasonably request, (ii) prepare

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and file in those jurisdictions such amendments (including post-effective
amendments) and supplements to such registrations and qualifications as may be
necessary to maintain the effectiveness thereof during the Registration Period,
(iii) take such other actions as may be necessary to maintain such registrations
and qualifications in effect at all times during the Registration Period, and
(iv) take all other actions reasonably necessary or advisable to qualify the
Registrable Securities for sale in such jurisdictions; PROVIDED, HOWEVER, that
the Company shall not be required in connection therewith or as a condition
thereto to (a) qualify to do business in any jurisdiction where it would not
otherwise be required to qualify but for this Section 3(d), (b) subject itself
to general taxation in any such jurisdiction, (c) file a general consent to
service of process in any such jurisdiction, (d) provide any undertakings that
cause the Company undue expense or burden, or (e) make any change in its charter
or bylaws, which in each case the Board of Directors of the Company determines
to be contrary to the best interests of the Company and its stockholders.

               e. [INTENTIONALLY OMITTED]

               f. As promptly as practicable after becoming aware of such event,
the Company shall notify each Investor of the happening of any event, of which
the Company has knowledge, as a result of which the prospectus included in any
Registration Statement, as then in effect, includes an untrue statement of a
material fact or omission to state a material fact required to be stated therein
or necessary to make the statements therein not misleading, and use its best
efforts promptly to prepare a supplement or amendment to any Registration
Statement to correct such untrue statement or omission, and deliver such number
of copies of such supplement or amendment to each Investor as such Investor may
reasonably request; provided that, for not more than thirty (30) consecutive
days (or a total of not more than ninety (90) days in any twelve (12) month
period), the Company may delay the disclosure of material non-public information
concerning the Company (as well as prospectus or Registration Statement
updating) the disclosure of which at the time is not, in the good faith opinion
of the Company, in the best interests of the Company (an "ALLOWED DELAY");
provided, further, that the Company shall promptly (i) notify the Investors in
writing of the existence of (but in no event, without the prior written consent
of an Investor, shall the Company disclose to such Investor any of the facts or
circumstances regarding) material non-public information giving rise to an
Allowed Delay and (ii) advise the Investors in writing to cease all sales under
such Registration Statement until the end of the Allowed Delay. Upon expiration
of the Allowed Delay, the Company shall again be bound by the first sentence of
this Section 3(f) with respect to the information giving rise thereto.

               g. The Company shall use its reasonable best efforts to prevent
the issuance of any stop order or other suspension of effectiveness of any
Registration Statement, and, if such an order is issued, to obtain the
withdrawal of such order at the earliest possible moment and to notify each
Investor who holds Registrable Securities being sold (or, in the event of an
underwritten offering, the managing underwriters) of the issuance of such order
and the resolution thereof.

               h. The Company shall permit a single firm of counsel designated
by E-Stamp to review such Registration Statement and all amendments and
supplements thereto (as well as all requests for acceleration or effectiveness
thereof) a reasonable period of time prior to their filing with the SEC (not
less than three (3) business days but not more then five (5) business

                                       5
<PAGE>

days) and not file any document in a form to which such counsel reasonably
objects and will not request acceleration of such Registration Statement without
prior notice to such counsel. The sections of such Registration Statement
covering information with respect to the Investors, the Investor's beneficial
ownership of securities of the Company or the Investors intended method of
disposition of Registrable Securities shall conform to the information provided
to the Company by each of the Investors.

               i. The Company shall make generally available to its security
holders as soon as practicable, but not later than ninety (90) days after the
close of the period covered thereby, an earnings statement (in form complying
with the provisions of Rule 158 under the 1933 Act) covering a twelve-month
period beginning not later than the first day of the Company's fiscal quarter
next following the effective date of the Registration Statement.

               j. At the request of any Investor participating in an
underwritten offering pursuant to Section 2(b), the Company shall furnish, on
the date that Registrable Securities are delivered to an underwriter for sale in
connection with any Registration Statement pursuant to Section 2(b), (i) an
opinion, dated as of such date, from counsel representing the Company for
purposes of such Registration Statement, in form, scope and substance as is
customarily given in an underwritten public offering, addressed to the
underwriters, if any, and the Investors and (ii) a letter, dated such date, from
the Company's independent certified public accountants in form and substance as
is customarily given by independent certified public accountants to underwriters
in an underwritten public offering, addressed to the underwriters, if any, and
the Investors.

               k. The Company shall make available for inspection by (i) any
Investor, (ii) one firm of attorneys and one firm of accountants or other agents
retained by E-Stamp and (iii) one firm of attorneys and one firm of accountants
or other agents retained by all other Investors (collectively, the "INSPECTORS")
all pertinent financial and other records, and pertinent corporate documents and
properties of the Company (collectively, the "Records"), as shall be reasonably
deemed necessary by each Inspector to enable each Inspector to exercise its due
diligence responsibility, and cause the Company's officers, directors and
employees to supply all information which any Inspector may reasonably request
for purposes of such due diligence; PROVIDED, HOWEVER, that each Inspector shall
hold in confidence and shall not make any disclosure (except to an Investor) of
any Record or other information which the Company determines in good faith to be
confidential, and of which determination the Inspectors are so notified, unless
(a) the disclosure of such Records is necessary to avoid or correct a
misstatement or omission in any Registration Statement, (b) the release of such
Records is ordered pursuant to a subpoena or other order from a court or
government body of competent jurisdiction, or (c) the information in such
Records has been made generally available to the public other than by disclosure
in violation of this or any other agreement. The Company shall not be required
to disclose any confidential information in such Records to any Inspector until
and unless such Inspector shall have entered into confidentiality agreements (in
form and substance satisfactory to the Company) with the Company with respect
thereto, substantially in the form of this Section 3(k). Each Investor agrees
that it shall, upon learning that disclosure of such Records is sought in or by
a court or governmental body of competent jurisdiction or through other means,
give prompt notice to the Company and allow the Company, at its expense, to
undertake appropriate action to prevent disclosure of, or to obtain a protective
order for, the Records deemed

                                       6
<PAGE>

confidential. Nothing herein (or in any other confidentiality agreement between
the Company and any Investor) shall be deemed to limit the Investor's ability to
sell Registrable Securities in a manner which is otherwise consistent with
applicable laws and regulations.

               l. The Company shall hold in confidence and not make any
disclosure of information concerning an Investor provided to the Company unless
(i) disclosure of such information is necessary to comply with federal or state
securities laws, (ii) the disclosure of such information is necessary to avoid
or correct a misstatement or omission in any Registration Statement, (iii) the
release of such information is ordered pursuant to a subpoena or other order
from a court or governmental body of competent jurisdiction, or (iv) such
information has been made generally available to the public other than by
disclosure in violation of this or any other agreement. The Company agrees that
it shall, upon learning that disclosure of such information concerning an
Investor is sought in or by a court or governmental body of competent
jurisdiction or through other means, give prompt notice to such Investor prior
to making such disclosure, and allow the Investor, at its expense, to undertake
appropriate action to prevent disclosure of, or to obtain a protective order
for, such information.

               m. The Company shall (i) cause all the Registrable Securities
covered by the Registration Statement to be listed on each national securities
exchange on which securities of the same class or series issued by the Company
are then listed, if any, if the listing of such Registrable Securities is then
permitted under the rules of such exchange, or (ii) to the extent the securities
of the same class or series are not then listed on a national securities
exchange, secure the designation and quotation, of all the Registrable
Securities covered by the Registration Statement on Nasdaq or, if not eligible
for Nasdaq, on the Nasdaq SmallCap and, without limiting the generality of the
foregoing, to use its reasonable best efforts to arrange for at least two market
makers to register with the National Association of Securities Dealers, Inc.
("NASD") as such with respect to such Registrable Securities.

               n. The Company shall provide a transfer agent and registrar,
which may be a single entity, for the Registrable Securities not later than the
effective date of the Registration Statement.

               o. The Company shall cooperate with the Investors who hold
Registrable Securities being offered and the managing underwriter or
underwriters, if any, to facilitate the timely preparation and delivery of
certificates (not bearing any restrictive legends) representing Registrable
Securities to be offered pursuant to such Registration Statement and enable such
certificates to be in such denominations or amounts, as the case may be, as the
managing underwriter or underwriters, if any, or the Investors may reasonably
request and registered in such names as the managing underwriter or
underwriters, if any, or the Investors may request.

               p. At the request of the holders of a majority-in-interest of the
Registrable Securities, the Company shall prepare and file with the SEC such
amendments (including post-effective amendments) and supplements to a
Registration Statement and any prospectus used in connection with the
Registration Statement as may be necessary in order to change the plan of
distribution set forth in such Registration Statement.

                                       7
<PAGE>

               q. The Company shall not offer any securities for its own account
or the account of others in any Registration Statement under Section 2(a) hereof
or any amendment or supplement thereto under Section 3(b) hereof without the
consent of the holders of a majority-in-interest of the Registrable Securities.

               r. The Company shall take all other reasonable actions necessary
to expedite and facilitate disposition by the Investors of Registrable
Securities pursuant to a Registration Statement.

               s. The Company shall comply with all applicable laws related to a
Registration Statement and offering and sale of securities and all applicable
rules and regulations of governmental authorities in connection therewith
(including without limitation the 1933 Act and the 1934 Act and the rules and
regulations promulgated by the SEC).

            4. OBLIGATIONS OF THE INVESTORS.

            In connection with the registration of the Registrable Securities,
the Investors shall have the following obligations:

               a. It shall be a condition precedent to the obligations of the
Company to complete the registration pursuant to this Agreement with respect to
the Registrable Securities of a particular Investor that such Investor shall
furnish to the Company such information regarding itself, the Registrable
Securities held by it and the intended method of disposition of the Registrable
Securities held by it as shall be reasonably required to effect the registration
of such Registrable Securities and shall execute such documents in connection
with such registration as the Company may reasonably request. At least three (3)
business days prior to the first anticipated filing date of the Registration
Statement, the Company shall notify each Investor of the information the Company
requires from each such Investor.

               b. Each Investor, by such Investor's acceptance of the
Registrable Securities, agrees to cooperate with the Company as reasonably
requested by the Company in connection with the preparation and filing of the
Registration Statements hereunder, unless such Investor has notified the Company
in writing of such Investor's election to exclude all of such Investor's
Registrable Securities from the Registration Statements.

               c. In the event of an underwritten offering pursuant to Section
2(d) in which any Registrable Securities are to be included, each Investor
agrees to enter into and perform such Investor's obligations under an
underwriting agreement, in usual and customary form, including, without
limitation, customary indemnification and contribution obligations, with the
managing underwriter of such offering and take such other actions as are
reasonably required in order to expedite or facilitate the disposition of the
Registrable Securities, unless such Investor has notified the Company in writing
of such Investor's election to exclude all of such Investor's Registrable
Securities from such Registration Statement.

               d. Each Investor agrees that, upon receipt of any notice from the
Company of the happening of any event of the kind described in Section 3(f) or
3(g), such Investor will immediately discontinue disposition of Registrable
Securities pursuant to the

                                       8
<PAGE>

Registration Statement covering such Registrable Securities until such
Investor's receipt of the copies of the supplemented or amended prospectus
contemplated by Section 3(f) or 3(g) and, if so directed by the Company, such
Investor shall deliver to the Company (at the expense of the Company) or destroy
(and deliver to the Company a certificate of destruction) all copies in such
Investor's possession, of the prospectus covering such Registrable Securities
current at the time of receipt of such notice.

               e. No Investor may participate in any underwritten registration
hereunder unless such Investor (i) agrees to sell such Investor's Registrable
Securities on the basis provided in any underwriting arrangements in usual and
customary form entered into by the Company, (ii) completes and executes all
questionnaires, powers of attorney, indemnities, underwriting agreements and
other documents reasonably required under the terms of such underwriting
arrangements, and (iii) agrees to pay its pro rata share of all underwriting
discounts and commissions and any expenses in excess of those payable by the
Company pursuant to Section 5 below.

               f. In connection with the Company's first follow-on offering of
its securities after the closing of the Merger in connection with an effective
registration statement under the Securities Act (provided that such offering is
a firm commitment underwritten offering expected to yield net proceeds to the
Company of at least $10 million), upon the request of the Company or the
underwriters managing such underwritten offering of the Company's securities,
each Investor hereby agrees not to sell, assign, transfer or dispose of or enter
into any contract, option or other agreement or understanding (including without
limitation any short sale (whether or not against the box) or any purchase, sale
or grant of any right (including, without limitation, any put or call option)
with respect to any security (other than a broad-based market basket or index)
that includes, relates to or derives any significant part of its value from
Common Stock of the Company), with respect to the direct or indirect sale,
assignment, transfer or disposition of ("TRANSFER") any of the Registrable
Securities (other than those included in the registration) without the prior
written consent of the Company or such underwriters, as the case may be, for
such period of time, not to exceed ninety (90) days (or such lesser period as
directors and executive officers of the Company are so restricted with respect
to the Transfer of shares of capital stock of the Company held by them) after
the effective date of the registration statement relating thereto.

               g. Nothing in this Agreement shall be deemed to limit any of
E-Stamp's obligations under the Merger Agreement.

            5. EXPENSES OF REGISTRATION.

            All reasonable expenses, other than underwriting discounts and
commissions and other than fees and disbursements of counsel to the Investors,
incurred in connection with registrations, filings or qualifications pursuant to
Sections 2 and 3, including, without limitation, all registration, listing and
qualification fees, printers and accounting fees and the fees and disbursements
of counsel for the Company, shall be borne by the Company.

                                       9
<PAGE>

            6. INDEMNIFICATION.

            In the event any Registrable Securities are included in a
Registration Statement under this Agreement:

               a. To the extent permitted by law, the Company will indemnify,
hold harmless and defend (i) each Investor who holds such Registrable
Securities, (ii) the directors, officers, partners, employees, agents and each
person who controls any Investor within the meaning of the 1933 Act or the
Securities Exchange Act of 1934, as amended (the "1934 ACT"), if any, (iii) any
underwriter (as defined in the 1933 Act) for the Investors in connection with an
underwritten offering pursuant to Section 2(d) hereof, and (iv) the directors,
officers, partners, employees and each person who controls any such underwriter
within the meaning of the 1933 Act or the 1934 Act, if any (each, an
"INDEMNIFIED PERSON"), against any joint or several losses, claims, damages,
liabilities or expenses (collectively, together with actions, proceedings or
inquiries by any regulatory or self-regulatory organization, whether commenced
or threatened, in respect thereof, "CLAIMS") to which any of them may become
subject insofar as such Claims arise out of or are based upon: (i) any untrue
statement or alleged untrue statement of a material fact in a Registration
Statement or the omission or alleged omission to state therein a material fact
required to be stated or necessary to make the statements therein not
misleading; (ii) any untrue statement or alleged untrue statement of a material
fact contained in any preliminary prospectus if used prior to the effective date
of such Registration Statement, or contained in the final prospectus (as amended
or supplemented, if the Company files any amendment thereof or supplement
thereto with the SEC) or the omission or alleged omission to state therein any
material fact necessary to make the statements made therein, in light of the
circumstances under which the statements therein were made, not misleading; or
(iii) any violation or alleged violation by the Company of the 1933 Act, the
1934 Act, any other law, including, without limitation, any state securities
law, or any rule or regulation thereunder relating to the offer or sale of the
Registrable Securities (the matters in the foregoing clauses (i) through (iii)
being, collectively, "VIOLATIONS"). Subject to the restrictions set forth in
Section 6(c) with respect to the number of legal counsel, the Company shall
reimburse the Indemnified Person, promptly as such expenses are incurred and are
due and payable, for any reasonable legal fees or other reasonable expenses
incurred by them in connection with investigating or defending any such Claim.
Notwithstanding anything to the contrary contained herein, the indemnification
agreement contained in this Section 6(a): (i) shall not apply to a Claim arising
out of or based upon a Violation which occurs in reliance upon and in conformity
with information furnished in writing to the Company by any Indemnified Person
or underwriter for such Indemnified Person expressly for use in connection with
the preparation of such Registration Statement or any such amendment thereof or
supplement thereto; (ii) shall not apply to amounts paid in settlement of any
Claim if such settlement is effected without the prior written consent of the
Company, which consent shall not be unreasonably withheld; and (iii) with
respect to any preliminary prospectus, shall not inure to the benefit of any
Indemnified Person if the untrue statement or omission of material fact
contained in the preliminary prospectus was corrected on a timely basis in the
prospectus, as then amended or supplemented, such corrected prospectus was
timely made available by the Company pursuant to Section 3(c) hereof, and the
Indemnified Person was promptly advised in writing not to use the incorrect
prospectus prior to the use giving rise to a Violation and such Indemnified
Person, notwithstanding such advice, used it. Such indemnity shall remain in
full force and effect regardless of any investigation made by or on behalf of
the

                                       10
<PAGE>

Indemnified Person and shall survive the transfer of the Registrable Securities
by the Investors pursuant to Section 9.

               b. In connection with any Registration Statement in which an
Investor is participating, each such Investor agrees severally and not jointly
to indemnify, hold harmless and defend, to the same extent and in the same
manner set forth in Section 6(a), the Company, each of its directors, each of
its officers who signs the Registration Statement, each person, if any, who
controls the Company within the meaning of the 1933 Act or the 1934 Act, any
underwriter and any other stockholder selling securities pursuant to the
Registration Statement or any of its directors or officers or any person who
controls such stockholder or underwriter within the meaning of the 1933 Act or
the 1934 Act (collectively and together with an Indemnified Person, an
"INDEMNIFIED PARTY"), against any Claim to which any of them may become subject,
under the 1933 Act, the 1934 Act or otherwise, insofar as such Claim arises out
of or is based upon any Violation by such Investor, in each case to the extent
(and only to the extent) that such Violation occurs in reliance upon and in
conformity with written information furnished to the Company by such Investor
expressly for use in connection with such Registration Statement; and subject to
Section 6(c) such Investor will reimburse any legal or other expenses (promptly
as such expenses are incurred and are due and payable) reasonably incurred by
them in connection with investigating or defending any such Claim; PROVIDED,
HOWEVER, that the indemnity agreement contained in this Section 6(b) shall not
apply to amounts paid in settlement of any Claim if such settlement is effected
without the prior written consent of such Investor, which consent shall not be
unreasonably withheld; PROVIDED, FURTHER, HOWEVER, that the Investor shall be
liable under this Agreement (including this Section 6(b) and Section 7) for only
that amount as does not exceed the net proceeds to such Investor as a result of
the sale of Registrable Securities pursuant to such Registration Statement. Such
indemnity shall remain in full force and effect regardless of any investigation
made by or on behalf of such Indemnified Party and shall survive the transfer of
the Registrable Securities by the Investors pursuant to Section 9.
Notwithstanding anything to the contrary contained herein, the indemnification
agreement contained in this Section 6(b) with respect to any preliminary
prospectus shall not inure to the benefit of any Indemnified Party if the untrue
statement or omission of material fact contained in the preliminary prospectus
was corrected on a timely basis in the prospectus, as then amended or
supplemented.

               c. Promptly after receipt by an Indemnified Person or Indemnified
Party under this Section 6 of notice of the commencement of any action
(including any governmental action), such Indemnified Person or Indemnified
Party shall, if a Claim in respect thereof is to be made against any
indemnifying party under this Section 6, deliver to the indemnifying party a
written notice of the commencement thereof, and the indemnifying party shall
have the right to participate in, and, to the extent the indemnifying party so
desires, jointly with any other indemnifying party similarly noticed, to assume
control of the defense thereof with counsel mutually satisfactory to the
indemnifying party and the Indemnified Person or the Indemnified Party, as the
case may be; PROVIDED, HOWEVER, that an Indemnified Person or Indemnified Party
shall have the right to retain its own counsel with the fees and expenses to be
paid by the indemnifying party, if, in the reasonable opinion of counsel
retained by the indemnifying party, the representation by such counsel of the
Indemnified Person or Indemnified Party and the indemnifying party would be
inappropriate due to actual or potential differing interests between such
Indemnified Person or Indemnified Party and any other party represented

                                       11
<PAGE>

by such counsel in such proceeding. The indemnifying party shall pay for only
one separate legal counsel for the Indemnified Persons or the Indemnified
Parties, as applicable, and such legal counsel shall be selected by Investors
holding a majority-in-interest of the Registrable Securities included in the
Registration Statement to which the Claim relates (with the approval of
E-Stamp), if the Investors are entitled to indemnification hereunder, or the
Company, if the Company is entitled to indemnification hereunder, as applicable.
The failure to deliver written notice to the indemnifying party within a
reasonable time of the commencement of any such action shall not relieve such
indemnifying party of any liability to the Indemnified Person or Indemnified
Party under this Section 6, except to the extent that the indemnifying party is
actually prejudiced in its ability to defend such action. The indemnification
required by this Section 6 shall be made by periodic payments of the amount
thereof during the course of the investigation or defense, as such expense,
loss, damage or liability is incurred and is due and payable.

            7. CONTRIBUTION.

            To the extent any indemnification by an indemnifying party is
prohibited or limited by law, the indemnifying party agrees to make the maximum
contribution with respect to any amounts for which it would otherwise be liable
under Section 6 to the fullest extent permitted by law; PROVIDED, HOWEVER, that
(i) no contribution shall be made under circumstances where the maker would not
have been liable for indemnification under the fault standards set forth in
Section 6, (ii) no seller of Registrable Securities guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the 1933 Act) shall be
entitled to contribution from any seller of Registrable Securities who was not
guilty of such fraudulent misrepresentation, and (iii) contribution (together
with any indemnification or other obligations under this Agreement) by any
seller of Registrable Securities shall be limited in amount to the net amount of
proceeds received by such seller from the sale of such Registrable Securities.

            8. REPORTS UNDER THE 1934 ACT.

            With a view to making available to the Investors the benefits of
Rule 144 promulgated under the 1933 Act or any other similar rule or regulation
of the SEC that may at any time permit the investors to sell securities of the
Company to the public without registration ("RULE 144"), the Company agrees to:

               a. make and keep public information available, as those terms are
understood and defined in Rule 144;

               b. file with the SEC in a timely manner all reports and other
documents required of the Company under the 1933 Act and the 1934 Act so long as
the Company remains subject to such requirements and the filing of such reports
and other documents is required for the applicable provisions of Rule 144; and

               c. furnish to each Investor so long as such Investor owns
Registrable Securities, promptly upon request, (i) a written statement by the
Company that it has complied

                                       12
<PAGE>

with the reporting requirements of Rule 144, the 1933 Act and the 1934 Act, (ii)
a copy of the most recent annual or quarterly report of the Company and such
other reports and documents so filed by the Company, and (iii) such other
information as may be reasonably requested to permit the Investors to sell such
securities pursuant to Rule 144 without registration.

            9. ASSIGNMENT OF REGISTRATION RIGHTS.

            The rights under this Agreement shall be automatically assignable by
the Investors to any transferee of all or any portion of Registrable Securities
if: (i) the Investor agrees in writing with the transferee or assignee to assign
such rights, and a copy of such agreement is furnished to the Company within a
reasonable time after such assignment, (ii) the Company is, within a reasonable
time after such transfer or assignment, furnished with written notice of (a) the
name and address of such transferee or assignee, and (b) the securities with
respect to which such registration rights are being transferred or assigned,
(iii) following such transfer or assignment, the further disposition of such
securities by the transferee or assignee is restricted under the 1933 Act and
applicable state securities laws, (iv) at or before the time the Company
receives the written notice contemplated by clause (ii) of this sentence, the
transferee or assignee agrees in writing with the Company to be bound by all of
the provisions contained herein, and (v) such transferee shall be an "ACCREDITED
INVESTOR" as that term defined in Rule 501 of Regulation D promulgated under the
1933 Act; PROVIDED, HOWEVER, that no assignment of the rights hereunder to a
competitor of the Company shall be permitted without the consent of the Company.

            10. AMENDMENT OF REGISTRATION RIGHTS.

            Provisions of this Agreement may be amended and the observance
thereof may be waived (either generally or in a particular instance and either
retroactively or prospectively), only with written consent of the Company,
E-Stamp (to the extent E-Stamp still owns Registrable Securities) and Investors
who hold a majority interest of the Registrable Securities. Any amendment or
waiver effected in accordance with this Section 10 shall be binding upon each
Investor and the Company.

            11. MISCELLANEOUS.

                a. A person or entity is deemed to be a holder of Registrable
Securities whenever such person or entity owns of record such Registrable
Securities. If the Company receives conflicting instructions, notices or
elections from two or more persons or entities with respect to the same
Registrable Securities, the Company shall act upon the basis of instructions,
notice or election received from the registered owner of such Registrable
Securities.

                b. Any notices required or permitted to be given under the terms
hereof shall be sent by certified or registered mail (return receipt requested)
or delivered personally or by courier (including a recognized overnight delivery
service) or by facsimile and shall be effective five days after being placed in
the mail, if mailed by regular United States mail,

                                       13
<PAGE>

or upon receipt, if delivered personally or by courier (including a recognized
overnight delivery service) or by facsimile, in each case addressed to a party.
The addresses for such communications shall be:

            If to the Company:

                Learn2.com, Inc.
                1311 Mamaroneck Avenue, Suite 210
                White Plains, New York 10605
                Attention: President and Chief Executive Officer
                Facsimile: (914) 682-8790

            With a copy to:

                Swidler Berlin Shereff Friedman, LLP
                The Chrysler Building
                405 Lexington Avenue
                New York, New York 10174
                Attention: Gerald Adler, Esq.
                Facsimile: (212) 891-9598

            If to E-Stamp:

                E-Stamp Corporation
                2051 Stierlin Court
                Mountain View, California 94043
                Attention: President and Chief Executive Officer
                Facsimile: (650) 919-7886

            With copy to:

                Wilson Sonsini Goodrich & Rosati
                650 Page Mill Road
                Palo Alto, California 94304-1050
                Attention: N. Anthony Jeffries, Esq.
                Facsimile: (650) 493-6811

                c. Failure of any party to exercise any right or remedy under
this Agreement or otherwise, or delay by a party in exercising such right or
remedy, shall not operate as a waiver thereof.

                d. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware applicable to agreements made
and to be performed in the State of Delaware (without regard to principles of
conflict of laws). Both parties irrevocably consent to the jurisdiction of the
United States federal courts and the state courts located in Delaware with
respect to any suit or proceeding based on or arising under this Agreement, the
agreements entered into in connection herewith or the transactions contemplated
hereby or

                                       14
<PAGE>

thereby and irrevocably agree that all claims in respect of such suit or
proceeding may be determined in such courts. Both parties irrevocably waive the
defense of an inconvenient forum to the maintenance of such suit or proceeding.
Both parties further agree that service of process upon a party mailed by first
class mail shall be deemed in every respect effective service of process upon
the party in any such suit or proceeding. Nothing herein shall affect either
party's right to serve process in any other manner permitted by law. Both
parties agree that a final non-appealable judgment in any such suit or
proceeding shall be conclusive and may be enforced in other jurisdictions by
suit on such judgment or in any other lawful manner.

                e. This Agreement, the Merger Agreement, the Convertible Note
and the Certificate of Designation (including all schedules and exhibits
thereto) constitute the entire agreement among the parties hereto with respect
to the subject matter hereof and thereof. There are no restrictions, promises,
warranties or undertakings, other than those set forth or referred to herein and
therein. This Agreement, the Merger Agreement, the Convertible Note and the
Certificate of Designation supersede all prior agreements and understandings
among the parties hereto with respect to the subject matter hereof and thereof.

                f. Subject to the requirements of Section 9 hereof, this
Agreement shall inure to the benefit of and be binding upon the successors and
assigns of each of the parties hereto.

                g. The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

                h. This Agreement may be executed in two or more counterparts,
each of which shall be deemed an original but all of which shall constitute one
and the same agreement. This Agreement, once executed by a party, may be
delivered to the other party hereto by facsimile transmission of a copy of this
Agreement bearing the signature of the party so delivering this Agreement.

                i. Each party shall do and perform, or cause to be done and
performed, all such further acts and things, and shall execute and deliver all
such other agreements, certificates, instruments and documents, as the other
party may reasonably request in order to carry out the intent and accomplish the
purposes of this Agreement and the consummation of the transactions contemplated
hereby.

                j. Except as otherwise provided herein, all consents and other
determinations to be made by the Investors pursuant to this Agreement shall be
made by Investors holding a majority of the Registrable Securities.

                k. The Company acknowledges that a breach by it of its
obligations hereunder will cause irreparable harm to each Investor by vitiating
the intent and purpose of the transactions contemplated hereby. Accordingly, the
Company acknowledges that the remedy at law for breach of its obligations
hereunder will be inadequate and agrees, in the event of a breach or threatened
breach by the Company of any of the provisions hereunder, that each Investor
shall be entitled, in addition to all other available remedies in law or in
equity, to an injunction or injunctions to prevent or cure breaches of the
provisions of this Agreement and to enforce

                                       15
<PAGE>

specifically the terms and provisions hereof, without the necessity of showing
economic loss and without any bond or other security being required.

                l. The language used in this Agreement will be deemed to be the
language chosen by the parties to express their mutual intent, and no rules of
strict construction will be applied against any party.

                m. In the event that any provision of this Agreement is invalid
or unenforceable under any applicable statute or rule of law, then such
provision shall be deemed inoperative to the extent that it may conflict
therewith and shall be deemed modified to conform with such statute or rule of
law. Any provision hereof which may prove invalid or unenforceable under any law
shall not affect the validity or enforceability of any other provision hereof.

                n. This Agreement shall become effective on the Termination
Date. In the event that the Merger Agreement is consummated in accordance with
its terms, this Agreement shall terminate and be of no further force or effect.

                                       16
<PAGE>

            IN WITNESS WHEREOF, the Company and E-Stamp have caused this
Agreement to be duly executed as of the date first above written.

LEARN2.COM, INC.

By:________________________________
    Name:
    Title:

E-STAMP CORPORATION

By:________________________________
    Name:
    Title:

                                       17

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