LOCK-UP AGREEMENT

THIS LOCK-UP AGREEMENT (this “Agreement”) is made and entered into as of the
15th day of June, 2007, between West Coast Opportunity Fund, LLC, a California
limited liability company (“WCOF”), and the individuals and entities that
execute and deliver a Counterpart Signature Page hereof, each a shareholder of
Tribeworks, Inc., a Delaware corporation (the “Company”), and sometimes
collectively referred to herein as the “Stockholders” and each, a “Stockholder.”

WHEREAS, the Company intends to enter into a Securities Purchase Agreement
between the Company and WCOF, dated on the date hereof (the “Securities Purchase
Agreement”) pursuant to which the execution and delivery of this Agreement is a
condition precedent to the closing of the Securities Purchase Agreement; and

WHEREAS, in order to facilitate the consummation of the transactions
contemplated by the Securities Purchase Agreement and to provide for an orderly
market for the Company’s common stock, par value $0.0004 per share (the “Common
Stock”), subsequent to the closing of the Securities Purchase Agreement, the
Stockholders have agreed to enter into this Agreement and to restrict the sale,
assignment, transfer, conveyance, hypothecation or alienation of the Common
Stock, all on the terms set forth below.

NOW, THEREFORE, in consideration of the foregoing premises and the mutual
covenants contained herein, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

1.  Notwithstanding anything contained in this Agreement, a Stockholder may
transfer his/her/its shares of Common Stock to his/her/its affiliates, partners
in a partnership, subsidiaries and trusts, or spouses and lineal descendants for
estate planning purposes provided that the transferee (or the legal
representative of the transferee) executes an agreement to be bound by all of
the terms and conditions of this Agreement.

2.  Each Stockholder agrees that it will not make or cause any sale, except as
described in Section 1, above, of any Securities listed on Exhibit A hereto
(which, as of the date of this Agreement, the Stockholder owns of record),
without WCOF’s prior written consent earlier than the ninetieth day following
the date on which that certain Initial Promissory Note, dated as of the date
hereof and executed by the Company in favor of WCOF and that certain Secondary
Promissory Note, dated as of July 10, 2007, have been fully repaid or otherwise
satisfied.

3.  a. In the event of a firmly-underwritten public offering of Common Stock or
other equity interest of the Company for the account of the Company registered
under the Securities Act of 1933 (the “1933 Act”) by a nationally recognized
investment bank resulting in at least US $35,000,000 in gross proceeds (before
underwriters’ discounts and selling commissions) to the Company (the “Public
Offering”), Stockholder agrees that for a period of six (6) months commencing on
the effective date of the registration statement filed under the 1933 Act
relating to the Public Offering (the “Lock-up Period”), Stockholder will not
offer, sell, contract to sell, grant any option for the sale of, or otherwise
dispose of, directly or indirectly, any of the Common Stock, or any other
securities of the Company which are exercisable for any other securities of the
Company. In order to enable the Company to enforce the aforesaid restrictions on
transfer, Stockholder hereby agrees that the Company may impose stop-transfer
instructions with respect to the securities of the Company owned beneficially or
of record by Stockholder until the end of such six-month period.

 
 

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b. In the event that the National Association of Securities Dealers, any other
state or federal regulatory authority requires that the Lock-Up Period be
extended in connection with the Public Offering, Stockholder agrees that it will
use commercially reasonable efforts to execute any agreements and other
documents to extend the Lock-Up Period to the extent required by the National
Association of Securities Dealers or such regulatory authority.
 
c. Any one or more of the restrictions set forth in this Section 3: (i) may be
waived by the board of directors of the Company if it determines in good faith
and in the exercise of its fiduciary duties that such waiver would be in the
best interests of the Company and its stockholders for any valid business
purpose, including, without limitation, to increase the liquidity of the Common
Stock; and (ii) will be null and void upon the consummation of any tender offer
to purchase all or substantially all of the Company’s issued and outstanding
securities or any merger, consolidation or other reorganization of the Company
with or into an unaffiliated Person if such transaction is approved by the
affirmative vote of the requisite number of record and beneficial owners of the
Company’s then outstanding and entitled to vote on such transaction.
 
4. To the extent not inconsistent with applicable law, if Stockholder’s Common
Stock are included in a registration statement, Stockholder agrees not to effect
any public sale or distribution of the issue being registered or a similar
security of the Company, or any securities exercisable for such securities,
including a sale pursuant to Rule 144 under the 1933 Act, during the fourteen
(14) days prior to, and during the one hundred eighty (180) day period beginning
on, the effective date of such registration statement (except as part of the
registration), if and to the extent requested by the managing underwriter or
underwriters in the case of an underwritten public offering.
 
5. By executing this Agreement, each Stockholder represents that the Common
Stock set forth in Exhibit A is all of the shares of Company Common Stock that
such Stockholder beneficially owns as of the date hereof.

6. In the event of a tender offer to purchase all or substantially all of
Company’s issued and outstanding securities including all of the securities
owned by WCOF, or a merger, consolidation or other reorganization with or into
an unaffiliated entity, and if the requisite number of the record and beneficial
owners of Company securities then outstanding are voted in favor of such tender
offer, merger, consolidation or reorganization, and such tender offer, merger,
consolidation or reorganization is completed, this Agreement shall terminate as
of the closing of such event provided that the Promissory Note has been fully
repaid or otherwise satisfied, and the Common Stock restricted pursuant hereto
shall be immediately released from the restrictions contained herein.

 
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7. Except as otherwise provided in this Agreement or any other agreements
between the parties, the Stockholders shall be entitled to their respective
beneficial rights of ownership of the Common Stock, including the right to vote
the Common Stock for any and all purposes.

8. The Common Stock restrictions covered by this Agreement shall be
appropriately adjusted should the Company make a dividend or distribution,
undergo a forward split or a reverse split or otherwise reclassify its shares of
Common Stock.

9. This Agreement may be executed in any number of counterparts with the same
force and effect as if all parties had executed the same document.

10. All notices, instructions or other communications required or permitted to
be given pursuant to this Agreement shall be given in writing and delivered by
certified mail, return receipt requested, overnight delivery or hand-delivered
to all parties to this Agreement, to WCOF, at 2151 Alessandro Drive, Suite 100,
Ventura, CA 93001, Attn: Atticus Lowe, CFA, and to the Stockholders, at the
addresses in their Counterpart Signature Pages. All notices shall be deemed to
be given on the same day if delivered by hand or on the following business day
if sent by overnight delivery or the second business day following the date of
mailing.

11. The sale and transfer restrictions on the Common Stock set forth in this
Agreement shall be in addition to all other restrictions on transfer imposed by
applicable United States and state securities laws, rules and regulations.

12. This Agreement sets forth the entire understanding of the parties hereto
with respect to the subject matter hereof, and may not be amended except by a
written instrument executed by the parties hereto.

13. This Agreement shall be governed by and construed in accordance with the
laws of the State of Delaware applicable to contracts entered into and to be
performed wholly within said State; and Company and the Stockholders agree that
any action based upon this Agreement may be brought in the United States and
state courts of Texas only, and each submits himself/herself/itself to the
jurisdiction of such courts for all purposes hereunder.

14. In the event of default hereunder, the non-defaulting parties shall be
entitled to recover reasonable attorney’s fees incurred in the enforcement of
this Agreement.

 
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IN WITNESS WHEREOF, the undersigned have duly executed and delivered this
Agreement as of the day and year first above written.

        WEST COAST OPPORTUNITY FUND, LLC  
   
   
    By:      

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Name: Atticus Lowe   Title:  Chief Investment Officer

 
 
 
[Signature Page to Lock-Up Agreement]

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Counterpart Signature Page to the Lock-Up Agreement

IN WITNESS WHEREOF, the undersigned have duly executed and delivered this
Lock-Up Agreement as of the day and year first above written.

        STOCKHOLDER:  
   
   
    By:      

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  Name:      

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  Address:    

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[Signature Page to Lock-Up Agreement]

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EXHIBIT A

Stockholder
Number of Shares of Common Stock Owned