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EXHIBIT 23.3
CONSENT OF INDEPENDENT ACCOUNTANTS
The Board of Directors
Jupiter Communications, Inc.
We consent to the inclusion in Post Effective Amendment No. 1 on Form S-3
to the Registration Statement (Form S-1 No. 333-34388) of Media Metrix, Inc. of
our report dated February 7, 2000, relating to the consolidated balance sheets
of Jupiter Communications, Inc. and subsidiaries as of December 31, 1999 and
1998, and the related consolidated statements of operations, stockholders'
equity/members' deficiency, and cash flows for each of the years in the
three-year period ended December 31, 1999, and to the reference to our firm
under the heading "Experts" in the prospectus.
/s/ KPMG LLP
New York, New York
August 10, 2000
