Document:

Exhibit 4.2

                  NUMBER                                                  SHARES

         ______C

                            ITHAKA ACQUISITION CORP.

              INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

                                  COMMON STOCK

                                                                 SEE REVERSE FOR
                                                             CERTAIN DEFINITIONS

               THIS CERTIFIES THAT                      CUSIP

               IS THE OWNER OF

   FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $.0001 EACH OF THE
                                 COMMON STOCK OF

                            ITHAKA ACQUISITION CORP.

  TRANSFERABLEON THE BOOKS OF THE CORPORATION IN PERSON OR BY DULY AUTHORIZED
         ATTORNEY UPON SURRENDER OF THIS CERTIFICATE PROPERLY ENDORSED.
  THIS CERTIFICATE IS NOT VALID UNLESS COUNTERSIGNED BY THE TRANSFER AGENT AND
                          REGISTERED BY THE REGISTRAR.
         WITNESS THE FACSIMILE SEAL OF THE CORPORATION AND THE FACSIMILE
                  SIGNATURES OF ITS DULY AUTHORIZED OFFICERS.

    DATED:

                                    [ITHAKA CORP
----- -----------------------------     LOGO    --------------------------------
 CHAIRMAN                             OMITTED]  SECRETARY

<PAGE>

         The following  abbreviations,  when used in the inscription on the face
of this certificate,  shall be construed as though they were written out in full
according to applicable laws or regulations:
<TABLE>
<S>                                                     <C>
         TEN COM -   as tenants in common               UNIF GIFT MIN ACT - _____ Custodian ______
         TEN ENT -   as tenants by the entireties                          (Cust)           (Minor)
         JT TEN -    as joint tenants with right of survivorship           under Uniform Gifts to Minors
                     and not as tenants in common                                  Act ______________
                                                                                                (State)
</TABLE>

    Additional Abbreviations may also be used though not in the above list.

                            ITHAKA ACQUISITION CORP.

         The Corporation  will furnish without charge to each stockholder who so
requests the powers,  designations,  preferences  and  relative,  participating,
optional or other special rights of each class of stock or series thereof of the
Corporation  and  the  qualifications,  limitations,  or  restrictions  of  such
preferences and/or rights.  This certificate and the shares represented  thereby
are issued and shall be held subject to all the provisions of the Certificate of
Incorporation  and all  amendments  thereto  and  resolutions  of the  Board  of
Directors  providing for the issue of shares of Preferred Stock (copies of which
may be obtained  from the  secretary  of the  Corporation),  to all of which the
holder of this certificate by acceptance hereof assents.

         FOR VALUE RECEIVED, _____________ HEREBY SELL, ASSIGN AND TRANSFER UNTO

PLEASE INSERT SOCIAL SECURITY OR OTHER
   IDENTIFYING NUMBER OF ASSIGNEE
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  (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)

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------------------------------------------------------------------------- SHARES

OF THE  CAPITAL  STOCK  REPRESENTED  BY THE  WITHIN  CERTIFICATE,  AND DO HEREBY
IRREVOCABLY CONSTITUTE AND APPOINT

                                                                        ATTORNEY
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TO TRANSFER  THE SAID STOCK ON THE BOOKS OF THE WITHIN  NAMED  CORPORATION  WILL
FULL POWER OF SUBSTITUTION IN THE PREMISES.

DATED
     -------------------

                      ----------------------------------------------------------
                      NOTICE: The signature to this  assignment  must correspond
                              with  the  name as  written  upon  the face of the
                              certificate   in   every    particular,    without
                              alteration or enlargement or any change whatever.

Signature(s) Guaranteed:

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THE  SIGNATURE(S)  SHOULD  BE  GUARANTEED  BY AN  ELIGIBLE
GUARANTOR  INSTITUTION (BANKS,  STOCKBROKERS,  SAVINGS AND
LOAN  ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN
APPROVED SIGNATURE GUARANTEE  MEDALLION PROGRAM,  PURSUANT
TO S.E.C. RULE 17Ad-15).

The holder of this certificate shall be entitled to receive funds from the trust
fund only in the event of the Company's liquidation upon failure to consummate a
business combination or if the holder seeks to convert his respective shares
into cash upon a business combination which he voted against and which is
actually completed by the Company. In no other circumstances shall the holder
have any right or interest of any kind in or to the trust fund.Exhibit 4.3

                                NUMBER
                        ________-                                       WARRANTS

                          (SEE REVERSE SIDE FOR LEGEND)
         (THIS WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO 5:00 P.M.
                      NEW YORK CITY TIME, __________, 2009

                            ITHAKA ACQUISITION CORP.
                                                     CUSIP

                                     WARRANT

THIS CERTIFIES THAT, for value received

is the registered holder of a Warrant or Warrants expiring  ________,  2009 (the
"Warrant") to purchase one fully paid and non-assessable  share of Common Stock,
par value $.0001 per share ("Shares"),  of Ithaka  Acquisition Corp., a Delaware
corporation  (the  "Company"),  for  each  Warrant  evidenced  by  this  Warrant
Certificate.  The  Warrant  entitles  the holder  thereof to  purchase  from the
Company,  commencing on the later of (i) the  Company's  completion of a merger,
capital stock exchange,  asset acquisition or other similar business combination
and (ii) ______________, 2006, such number of Shares of the Company at the price
of $5.00 per share,  upon surrender of this Warrant  Certificate  and payment of
the  Warrant  Price at the office or agency of the  Warrant  Agent,  Continental
Stock Transfer & Trust Company (such payment to be made by check made payable to
the Warrant  Agent),  but only subject to the conditions set forth herein and in
the Warrant Agreement between the Company and Continental Stock Transfer & Trust
Company.  The Warrant  Agreement  provides  that upon the  occurrence of certain
events the Warrant Price and the number of Warrant Shares purchasable hereunder,
set forth on the face hereof, may, subject to certain  conditions,  be adjusted.
The term Warrant Price as used in this Warrant  Certificate  refers to the price
per Share at which Shares may be purchased at the time the Warrant is exercised.

No  fraction of a Share will be issued  upon any  exercise of a Warrant.  If the
holder of a Warrant  would be entitled to receive a fraction of a Share upon any
exercise of a Warrant,  the Company shall,  upon such exercise,  round up to the
nearest whole number the number of Shares to be issued to such holder.

Upon any  exercise of the Warrant for less than the total  number of full Shares
provided for herein,  there shall be issued to the  registered  holder hereof or
the registered holder's assignee a new Warrant  Certificate  covering the number
of Shares for which the Warrant has not been exercised.

Warrant  Certificates,  when  surrendered at the office or agency of the Warrant
Agent by the registered  holder hereof in person or by attorney duly  authorized
in  writing,  may be  exchanged  in the  manner and  subject to the  limitations
provided in the Warrant  Agreement,  but without  payment of any service charge,
for  another  Warrant  Certificate  or  Warrant  Certificates  of like tenor and
evidencing in the aggregate a like number of Warrants.

Upon due presentment for registration of transfer of the Warrant  Certificate at
the office or agency of the Warrant Agent, a new Warrant  Certificate or Warrant
Certificates  of like tenor and  evidencing  in the  aggregate  a like number of
Warrants  shall be  issued  to the  transferee  in  exchange  for  this  Warrant
Certificate,  subject to the  limitations  provided  in the  Warrant  Agreement,
without charge except for any applicable tax or other governmental charge.

The Company and the Warrant  Agent may deem and treat the  registered  holder as
the absolute owner of this Warrant Certificate  (notwithstanding any notation of
ownership  or other  writing  hereon  made by  anyone),  for the  purpose of any
exercise hereof, of any distribution to the registered holder, and for all other
purposes, and neither the Company nor the Warrant Agent shall be affected by any
notice to the contrary.

This  Warrant does not entitle the  registered  holder to any of the rights of a
stockholder of the Company.

The  Company  reserves  the right to call the  Warrant  at any time prior to its
exercise,  with a notice  of call in  writing  to the  holders  of record of the
Warrant,  giving  30 days'  notice of such  call at any time  after the  Warrant
becomes exercisable if the last sale price of the Shares has been at least $8.50
per share on each of 20 trading days within any 30 trading day period  ending on
the third  business day prior to the date on which notice of such call is given.
The call price of the Warrants is to be $.01 per Warrant. Any Warrant either not
exercised  or tendered  back to the Company by the end of the date  specified in
the notice of call shall be  canceled  on the books of the  Company  and have no
further value except for the $.01 call price.

By

     -----------------------------                -----------------------------
                         Secretary                Chairman of the Board

<PAGE>

                                SUBSCRIPTION FORM
      To Be Executed by the Registered Holder in Order to Exercise Warrants

The undersigned Registered Holder irrevocably elects to exercise  ______________
Warrants represented by this Warrant Certificate,  and to purchase the shares of
Common Stock  issuable  upon the exercise of such  Warrants,  and requests  that
Certificates for such shares shall be issued in the name of

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                    (PLEASE TYPE OR PRINT NAME AND ADDRESS)

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                      (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)
and be delivered to
                    ------------------------------------------------------------
                          (PLEASE PRINT OR TYPE NAME AND ADDRESS)

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and, if such number of Warrants shall not be all the Warrants  evidenced by this
Warrant  Certificate,  that a new  Warrant  Certificate  for the balance of such
Warrants be registered in the name of, and delivered to, the  Registered  Holder
at the address stated below:

Dated:
       ---------------------                    --------------------------------
                                               (SIGNATURE)

                                               ---------------------------------
                                               (ADDRESS)

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

                                               ---------------------------------
                                               (TAX IDENTIFICATION NUMBER)

                                   ASSIGNMENT

       To Be Executed by the Registered Holder in Order to Assign Warrants

For Value Received, _____________________ hereby sell, assign, and transfer unto

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                     (PLEASE TYPE OR PRINT NAME AND ADDRESS)
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                 (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to
                    ------------------------------------------------------------
                          (PLEASE PRINT OR TYPE NAME AND ADDRESS)

______________________  of the Warrants represented by this Warrant Certificate,
and hereby irrevocably constitute and appoint  _________________________________
Attorney to transfer this Warrant Certificate on the books of the Company,  with
full power of substitution in the premises.

Dated:
      -------------------------             -----------------------------
                                                    (SIGNATURE)

THE SIGNATURE TO THE ASSIGNMENT OF THE SUBSCRIPTION  FORM MUST CORRESPOND TO THE
NAME  WRITTEN  UPON THE FACE OF THIS WARRANT  CERTIFICATE  IN EVERY  PARTICULAR,
WITHOUT  ALTERATION  OR  ENLARGEMENT  OR ANY  CHANGE  WHATSOEVER,  AND  MUST  BE
GUARANTEED  BY A  COMMERCIAL  BANK OR  TRUST  COMPANY  OR A  MEMBER  FIRM OF THE
AMERICAN  STOCK  EXCHANGE,  NEW YORK STOCK  EXCHANGE,  PACIFIC STOCK EXCHANGE OR
CHICAGO STOCK EXCHANGE.

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