Document:

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                                                                     EXHIBIT 4.3

                          INTERNET EXTRA CORPORATION
                          WARRANT PURCHASE AGREEMENT

     This Agreement is made and entered into as of January 11, 1999 by Internet
Extra Corporation, a California corporation (the "Company"), and Timothy Favia
(the "Purchaser").

     1.   Issuance of Warrant.
          -------------------

          1.1  In consideration for the agreed upon terms and conditions to be
met by the Purchaser, the sufficiency of which is hereby acknowledged, the
Company shall issue to the Purchaser a Common Stock Warrant ("Warrant") in the
form attached to this agreement as Exhibit A, exercisable for up to 500,000
                                   ---------
shares of Common Stock ("Shares"), at a price of $0.50 per share.  The terms and
conditions for exercise of the Warrants are set forth in the Warrant.

     2.   Investment Representations.
          --------------------------

          2.1  The Purchaser represents and warrants to the Company as follows:

               (a)  The Purchaser is aware of the Company's business affairs and
financial condition and has acquired sufficient information about the Company to
reach an informed and knowledgeable decision to acquire this Warrant and the
Shares.  The Purchaser is acquiring this Warrant and will acquire the Shares for
its own account for investment purposes only and not with a view to, or for the
resale in connection with, any "distribution" for purposes of the Securities Act
of 1933, as amended (the "Act").

               (b)  The Purchaser understands that this Warrant and the Shares
have not been registered under the Act in reliance upon a specific exemption,
which exemption depends upon, among other things, the bona fide nature of its
investment intent as expressed herein. In this connection, the Purchaser
understands that, in the view of the Securities and Exchange Commission ("SEC"),
the statutory basis for such exemption may be unavailable if its representation
was predicated solely upon a present intention to hold the Warrant or the Shares
for a period of one year or any other fixed period in the future.

               (c)  The Purchaser further understands that the Warrant and the
Shares must be held indefinitely unless subsequently registered under the Act or
unless an exemption from registration is otherwise available. Moreover, the
Purchaser understands that the Company is under no obligation to register the
Warrant or the Shares. In addition, the Purchaser understands that the Warrant
and the Shares will be imprinted with a legend which prohibits the transfer of
the Warrant or the Shares unless they are registered or such registration is not
required in the opinion of counsel for the Company.

               (d)  The Purchaser is aware of the provisions of Rule 144,
promulgated under the Act, which in substance, permit limited public resale of
"restricted securities" acquired, directly or indirectly from the issuer (or
from an affiliate of the issuer), in a non-public offering subject to the
satisfaction of certain conditions, including, in case the purchaser has held
the securities less than three
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years or is an affiliate of the Company: (1) the resale occurring not less than
two years after the party has purchased and paid for the securities to be sold;
(2) the availability of certain public information about the Company; (3) the
sale being made through a broker in an unsolicited "broker's transaction" or in
transactions directly with a market maker (as said terms are defined under the
Securities Exchange Act of 1934); (4) the amount of securities being sold during
any three-month period not exceeding certain specified limitations and (5) the
filing of a Notice of Sale on Form 144 as appropriate.

               (e)  The Purchaser further understands that at the time it wishes
to sell the Warrant or the Shares 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 Purchaser would be precluded from selling the
Warrant or Shares under Rule 144 unless (1) a three-year minimum holding period
had been satisfied and (2) it was not at the time of sale nor at any time during
the three-month period prior to such sale an affiliate of the Company.

               (f)  The Purchaser further understands that in the event all of
the applicable requirements of Rule 144 are not satisfied, registration under
the Act, compliance with Regulation A or some other registration exemption will
be required; and that, notwithstanding the fact that Rule 144 is not exclusive,
the staff of the SEC has expressed its opinion that persons proposing to sell
private placement securities other than in a registered offering and otherwise
than pursuant to Rule 144 will have a substantial burden of proof in
establishing that an exemption from registration is available for such offers or
sales and that such persons and their respective brokers who participate in such
transaction do so at their own risk.

          2.2  Legends.
               -------

               (a)  The Warrant shall be endorsed with the following legend (in
addition to any legend required by applicable state securities laws):

THE RIGHTS TO ACQUIRE SHARES REPRESENTED BY THIS WARRANT HAVE BEEN ACQUIRED FOR
INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR
DISTRIBUTION THEREOF.  NO SALE OR DISPOSITION MAYBE EFFECTED WITHOUT 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.

               (b)  Each certificate representing Shares shall be endorsed with
the following legend (in addition to any legend required by applicable state
securities laws):

               "THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES
          ACT OF 1933.  THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR
          HYPOTHECATED IN THE ABSENCE OF A REGISTRATION STATEMENT IN EFFECT WITH
          RESPECT TO THE SECURITIES UNDER SUCH ACT OR AN OPINION OF COUNSEL
          SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED OR
          UNLESS SOLD PURSUANT TO RULE 144 OF SUCH ACT."

                                       2
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The Company need not register a transfer of the Warrant or of Shares unless the
conditions specified in the foregoing legend, are satisfied.  the Company may
also instruct its transfer agent not to register the transfer of the Warrant or
any of the Shares unless the conditions specified in the foregoing legends are
satisfied.

          2.3  Removal of Legends and Transfer Restrictions.  The legend
               --------------------------------------------
relating to the Act endorsed on the Warrant or a stock certificate pursuant to
Section 2.2 and the stop transfer instructions with respect to the Warrant or
the Shares represented by such certificate shall be removed and the Company
shall issue a certificate without such legend to the holder of the Warrant or
such Shares if such Shares are registered under the Act and a prospectus meeting
the requirements of Section 10 of the Act is available, or if such holder
provides to the Company an opinion of counsel for such holder of the Warrant or
the Shares reasonably satisfactory to the Company or a no-action letter or
interpretive opinion of the staff of the SEC to the effect that a public sale,
transfer or assignment of such Shares may be made without registration and
without compliance with any restriction such as Rule 144.

     3.   Notices.  All notices and other communications required or permitted
          -------
hereunder shall be effective upon receipt and shall be in writing and may be
delivered in person, by telecopy, electronic mail, overnight delivery service or
U.S. mail, in which event it may be mailed by first-class, certified or
registered, postage prepaid, addressed (a) if to Purchaser, at the address
indicated on the signature page or at such other address as Purchaser furnishes
in writing to the Company or (b) if to the Company, at 131 Steuart Street,
Fourth Floor, San Francisco, California 94105, or at such other address as the
Company shall have furnished to the Purchaser in writing.

     4.   Assignment.  The Purchaser shall not assign this Agreement or any
          ----------
rights or obligations under it without the prior consent of the Company.
Subject to the foregoing, this Agreement shall bind and benefit the respective
parties to this Agreement and their successors and assigns.

     5.   Governing Law.  This Agreement shall be governed in all respects by
          -------------
the laws of the State of California as such laws are applied to agreements
between California residents entered into and to be performed entirely within
California.

     6.   Waiver.  The waiver of one breach or default shall not constitute the
          ------
waiver of any subsequent breach or default. In case any provision of this
Agreement shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or
impaired.

     7.   Amendment.  Neither this Agreement nor any provisions hereof may be
          ---------
changed, waived, discharged or terminated orally, but only by a signed statement
in writing.

     8.   Agreement.  This Agreement constitutes the full and entire
          ---------
understanding and agreement between the parties with regard to the subject
matter of this Agreement.

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     9.   Counterparts.  This Agreement may be signed in one or more
          ------------
counterparts, each of which shall be an original, and all of which together
shall be deemed to constitute one instrument.

     10.  Titles and Subtitles.  The titles of the paragraphs and subparagraphs
          --------------------
of this Agreement are for convenience of reference only and are not to be
considered in construing this Agreement.

     11.  California Corporate Securities Law.  THE SALE OF THE SECURITIES WHICH
          -----------------------------------
ARE THE SUBJECT OF THIS AGREEMENT HAS NOT BEEN QUALIFIED WITH THE COMMISSIONER
OF CORPORATIONS OF THE STATE OF CALIFORNIA AND THE ISSUANCE OF SUCH SECURITIES
OR THE PAYMENT OR RECEIPT OF ANY PART OF THE CONSIDERATION THEREFOR PRIOR TO
SUCH QUALIFICATION, IS UNLAWFUL UNLESS THE SALE OF SECURITIES IS EXEMPT FROM THE
QUALIFICATION BY SECTION 25100, 25102, OR 25105 OF THE CALIFORNIA CORPORATIONS
CODE.  THE RIGHTS OF ALL PARTIES TO THIS AGREEMENT ARE EXPRESSLY CONDITIONED
UPON SUCH QUALIFICATION BEING OBTAINED, UNLESS THE SALE IS SO EXEMPT.

     IN WITNESS WHEREOF, the parties have executed this Agreement effective as
of the date set forth at the beginning of this Agreement.

                                    INTERNET EXTRA CORPORATION

                                    By: /s/ Gregory R. Raifman
                                        ----------------------------------
                                        Gregory R. Raifman
                                        Chairman & Chief Executive Officer

                                    Dated: January 11, 1999

                                    TIMOTHY FAVIA

                                    By: /s/ Timothy Favia
                                        -----------------------------------

                                    Dated: January 11, 1999

                                    Address for Notices:<PAGE>

                                                                     EXHIBIT 4.4

THE RIGHTS TO ACQUIRE SHARES REPRESENTED BY THIS WARRANT HAVE BEEN ACQUIRED FOR
INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR
DISTRIBUTION THEREOF.  NO SALE OR DISPOSITION MAYBE EFFECTED WITHOUT 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.

500,000 Shares of                                               January 11, 1999
Common Stock
                          INTERNET EXTRA CORPORATION
                         COMMON STOCK PURCHASE WARRANT

       THIS CERTIFIES that for value received, Timothy Favia (the "Holder"), is
entitled prior to the Expiration Date (as defined below) to purchase and receive
from Internet Extra Corporation (the "Company") up to 500,000 shares of the
Company's common stock, without par value ("Common Stock"), at a purchase price
of $0.50 per share, upon and subject to the terms and conditions on the
following schedule and hereinafter set forth. This Warrant shall be exercisable
at any time prior to the Expiration Date (as defined below) for the number of
shares of Common Stock determined as follows:

(i)    250,000 shares, at any time after the opening by the Company of an office
       located in either New York, New York or outside of the United States in
       connection with which the Holder materially assisted and the recognition
       by the Company of at least $6.0 million in revenues in fiscal year 1999
       from signed orders from clients;

(ii)   150,000 shares, at any time after the Company enters into business
       relationships with at least two (2) advertising agencies in which the
       Holder materially assisted in generating, reasonably acceptable to the
       Company, and the recognition by the Company of at least $1.0 million in
       revenues in fiscal year 1999 from signed orders from such relationships
       in which the Holder materially assisted in generating;

(iii)  50,000 shares, at any time after the recognition by the Company of at
       least $9.0 million in revenues in fiscal year 1999 from signed orders
       from clients in which the Holder materially assisted in generating;

(iv)   50,000 shares, at any time after the recognition by the Company of at
       least $12.0 million in revenues in fiscal year 1999 from signed orders
       from clients in which the Holder materially assisted in generating.

provided, however, that in the event that the Holder is terminated from his
--------  -------
employment with the Company without Cause as "Cause" is defined to mean (a)
willful breach or habitual neglect by the Holder to substantially perform the
Holder's duties under his Employment Agreement with the Company dated of even
date hereof, or (b) the Holder's conviction of a felony or a crime involving
moral turpitude
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causing material harm to the standing and reputation of the Company, then, in
such event this Warrant shall be exercisable in full at any time prior to the
Expiration Date (as defined below) for up to 500,000 shares of the Company's
common stock at a purchase price of $0.50 per share. Upon reaching any of the
milestones set forth above, the Company will issue to the Holder a notice of
achievement of such milestone shortly after the Holder reached such milestone.

                        TERMS AND CONDITIONS OF WARRANT

     1.  Nontransferability of Warrant.  This Warrant may not be transferred in
         -----------------------------
any manner otherwise than by will or by the laws of descent or distribution and
may be exercised only by the Holder or his permitted assignee.  Any transfer of
this Warrant must comply with the requirements of Section 4 below, and any
purchaser or other assignee or transferee of this Warrant ("permitted assignee")
shall be required to accept this Warrant subject to all rights and obligations
of the Holder as set forth herein.

     2.  Exercise of Warrant.  This Warrant may be exercised by the Holder as to
         -------------------
the whole or any lesser number of shares of Common Stock covered hereby, subject
to the terms and conditions of Section 5 below, upon surrender of this Warrant
to the Company at its principal office in San Francisco, California, prior to
the close of business on the Expiration Date, together with the Notice of
Exercise attached hereto as Exhibit A, and the Investment Representation
                            ---------
Statement attached as Exhibit B, both duly executed by the Holder, and payment
                      ---------
to the Company in cash or the equivalent of the price herein set forth for the
shares to be purchased.  Certificates for the shares so purchased shall be
delivered to the Holder within a reasonable time, not exceeding 30 days, after
exercise of the stock purchase rights represented by this Warrant.  If this
Warrant is exercised in respect of less than all of the shares of Common Stock
covered hereby, the Holder shall be entitled to receive a new warrant covering
the number of shares in respect of which this Warrant shall not have been
exercised and is still subject to exercise.  Such new warrant shall be in all
other respects identical to this Warrant.

     3.  Covenants of the Company.  The Company covenants and agrees that all
         ------------------------
equity securities which may be issued upon the exercise of the rights
represented by this Warrant, upon issuance and payment therefor in accordance
herewith, will be duly authorized, validly issued, fully paid and nonassessable
shares of capital stock of the Company.  The Company further covenants and
agrees that, during the period within which the stock purchase rights
represented by this Warrant may be exercised, the Company will at all times have
authorized, and reserved for issuance upon the exercise of the purchase rights
evidenced by this Warrant, a number of shares of its Common Stock sufficient for
such issuance.

     4.  Restrictions on Transfer.  Neither this Warrant nor any of the stock
         ------------------------
purchase rights represented hereby may be sold, assigned, transferred,
subdivided, or otherwise disposed of by the Holder, directly or indirectly
except as permitted under Section 1 above.  In addition, any securities to be
issued upon exercise of this Warrant may not be sold, assigned, transferred or
otherwise disposed of unless the securities are registered under the Securities
Act of 1933 or unless the person seeking to effect such disposition shall have
requested and the Company shall have received an opinion of the Company's
counsel that the proposed disposition may be effected without registration of
such securities under the Securities Act of 1933, as amended, or any applicable
state securities laws.  Unless a registration
<PAGE>

statement with respect to such shares of Common Stock is effective at the time,
any shares of Common Stock issued upon the exercise of this Warrant shall bear
the following legend:

     THE RIGHTS TO ACQUIRE SHARES REPRESENTED BY THIS WARRANT HAVE BEEN ACQUIRED
     FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR
     DISTRIBUTION THEREOF.  NO SALE OR DISPOSITION MAYBE EFFECTED WITHOUT 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.

     5.  Adjustments.  In case at any time the Company shall by stock split,
         -----------
stock dividend or otherwise subdivide its outstanding shares of Common Stock
into a greater number of shares, the purchase price of Common Stock in effect
hereunder immediately prior to such subdivision shall be proportionately reduced
and the number of shares deliverable upon the exercise of this Warrant shall be
proportionately increased, and conversely, in case the outstanding shares of
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 deliverable upon the exercise of this Warrant
shall be proportionately decreased.  If any capital reorganization or
reclassification of Common Stock shall be effected in such a way that holders of
Common Stock (or any other securities of the Company then issuable upon exercise
of this Warrant) shall be entitled to receive securities with respect to or in
exchange for Common Stock (or such other securities) then, as a condition of
such capital reorganization or reclassification, lawful and adequate provision
shall be made whereby the Holder shall thereafter have the right to purchase and
receive upon the basis and upon the terms and conditions specified in this
Warrant and in lieu of the shares of Common Stock (or other securities) of the
Company immediately theretofore purchasable and receivable upon the exercise of
the rights represented hereby, such securities as may be issued with respect to
or in exchange for a number of shares of Common Stock (or such other securities)
immediately theretofore purchasable and receivable upon the exercise of the
rights represented hereby had such reorganization or reclassification not taken
place, and in each such case appropriate provision shall be made with respect to
the rights and interests of the Holder to the end that the provisions of this
Warrant shall thereafter be applicable, as nearly as is reasonably practicable,
in relation to any securities thereafter deliverable upon the exercise hereof.

     6.  Notices by Company.  In case at any time (i) the Company shall pay any
         ------------------
dividend payable in equity securities with respect to Common Stock to the
holders of outstanding Common Stock, (ii) the Company shall offer for
subscription pro rata to all holders of outstanding Common Stock any additional
shares of equity securities, (iii) there shall be any capital reorganization or
reclassification of the equity securities of the Company, or any consolidation
or merger of the Company with or sale of all or substantially all of the
Company's assets to another corporation, or (iv) there shall be a voluntary or
involuntary dissolution, liquidation or winding-up of the Company, then, in any
one or more of such cases, the Company shall give written notice by first class
mail, postage prepaid, addressed to the Holder at the address shown on the books
of the Company, of the date on which (a) the books of the Company shall close or
a record shall be taken for such dividend, distribution or subscription rights,
or (b) such reorganization, reclassification, consolidation, merger, sale of
assets, dissolution, liquidation or winding-up shall take place, as the case may
be.  Such notice shall also specify the date as of which the holders of Common
Stock of record shall participate in such dividend, distribution or subscription
rights, or shall be entitled to exchange their Common Stock for securities or
other property deliverable upon such reorganization, reclassification,
consolidation, merger, sale of assets, dissolution, liquidation, or winding-

                                       3
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up, as the case may be. The Company shall also give written notice, similarly
addressed and delivered, of the establishment of a trading market for the
Company's stock, whether within or outside the United States. Any such required
written notice shall be received by the Holder at least seven (7) days prior to
the action to be taken and not less than three (3) days prior to any record date
on which the Company's transfer books are closed with respect thereto.

     7.  Absence of Shareholder Rights.  Until exercise of the stock purchase
         -----------------------------
rights conferred by this Warrant and issuance of the equity securities issuable
upon such exercise, this Warrant does not confer upon the Holder any right
whatsoever as a shareholder of the Company.

     8.  Expiration.  This Warrant shall expire on three years from the date of
         ----------
issuance (the "Expiration Date").  At the close of business on the Expiration
Date, this Warrant shall become void as to all securities of the Company in
respect of which the stock purchase rights hereunder have not been previously
exercised, and payment has not been made in full for the securities issuable
upon such exercise; provided that in the case of the earlier dissolution of the
Company, this Warrant shall become void on the date fixed for such dissolution.

     9.  Notice of Intention to Exercise or Transfer.  The Holder, by acceptance
         -------------------------------------------
hereof, agrees to give written notice to the Company before exercising this
Warrant or transferring any Common Stock issued upon the exercise hereof, and
each subsequent holder of any of such Common Stock which is subject to paragraph
4 hereof shall give written notice to the Company before retransferring any of
such Common Stock unless such Common Stock has previously been registered.  Such
notice shall inform the Company of the Holder's intention to exercise this
Warrant or the Holder's or such holder's intention to effect such transfer or
retransfer, as the case may be, and shall describe briefly the date and time
when this Warrant will be surrendered in such exercise and the number of shares
to be made the subject of such exercise; or, in case of a transfer of Common
Stock, the Holder's or such holder's intention as to the disposition to be made
of shares of Common Stock issued upon the exercise hereof.  Promptly after
receiving such written notice of an intended transfer, the Company shall present
copies thereof to its counsel.  If in the opinion of such counsel the proposed
transfer of shares may be effected without registration or qualification (under
any federal or state law) of the shares of Common Stock issued on the exercise
hereof, the Company, as promptly as reasonably practicable, shall notify the
Holder or such holder of such opinion, whereupon the Holder or such holder shall
be entitled to effect the intended transfer of shares received upon the previous
exercise of this Warrant.

     10.  Market Standoff Agreement.  The Holder hereby agrees, if so requested
          -------------------------
by the managing underwriters in a public offering by the Company of its Common
Stock, that, without the prior written consent of such managing underwriters,
the Holder will not offer, sell, contract to sell, grant any option to purchase,
make any short sale or otherwise dispose of or make a distribution of any
capital stock of the Company held by or on behalf of the Holder or beneficially
owned by the Holder in accordance with the

                                       4
<PAGE>

rules and regulations of the Securities and Exchange Commission for a period of
up to 180 days after the date of the final prospectus relating to such offering.

     IN WITNESS WHEREOF, Internet Extra Corporation has caused this Warrant to
be signed by its duly authorized officer this 11/th/ day of January 1999.

                                    INTERNET EXTRA CORPORATION

                                    By   /s/ Gregory R. Raifman
                                         ----------------------
                                         Gregory R. Raifman
                                         Chairman and Chief Executive Officer

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