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Exhibit 23.5

Consent of Independent Registered Public Accounting Firm

        We consent to the reference to our firm under the caption "Experts" in the combined Proxy Statement/Prospectus of IAC/InterActiveCorp and Ask Jeeves, Inc. and to the use of our report dated April 1, 2005, with respect to the consolidated financial statements of Trip Advisor, Incorporated in Amendment No. 2 to the related Registration Statement (Form S-4 No. 333-124340) of IAC/InterActiveCorp.

/S/ ERNST & YOUNG LLP

Boston, Massachusetts
June 16, 2005

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Consent of Independent Registered Public Accounting Firm