X0202 3 2007-05-02 0 0001068875 INFOSPACE INC INSP 0001140474 SANDELL ASSET MANAGEMENT CORP 40 WEST 57TH STREET 26TH FLOOR NEW YORK NY 10019 1 0 0 1 See Remarks Common Stock, par value $0.0001 per share 2771204 I See Footnote Sandell Asset Management Corp. ("SAMC") is deemed to hold shares of common stock of InfoSpace, Inc. (the "Shares") indirectly as a beneficial owner. The Shares are held directly by Castlerigg Master Investments Ltd. and CGS, Ltd. (together, the "Funds"). SAMC serves as investment manager to the Funds. SAMC disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein. SAMC may be deemed a director by virtue of the fact that an employee of SAMC (Nick Graziano) currently serves on the board of directors of InfoSpace, Inc. Mr. Graziano's Non-Employee Director Grant derivative securities are reported on Mr. Graiano's Form 4 dated May 4, 2007. /s/ Thomas E. Sandell, Sandell Asset Management Corp., by Thomas E. Sandell in his capacity as Chief Executive Officer 2007-05-09