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EXHIBIT 23(a)
CONSENT OF INDEPENDENT AUDITORS
We consent to the incorporation by reference in the Registration Statement (Form
S-8 No.333-39292) pertaining to the Media Metrix, Inc. Amended and Restated 2000
Equity Incentive Plan and the Media Metrix, Inc. 2000 Employee Stock Purchase
Plan of our report dated January 28, 2000, except for the last three paragraphs
of Note 15, as to which the date is March 8, 2000, with respect to the
consolidated financial statements and schedule of Media Metrix, Inc. included in
its Annual Report (Form 10-K) for the year ended December 31, 1999, filed with
the Securities and Exchange Commission.
/s/ Ernst & Young LLP
New York, New York
September 29, 2000
