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Exhibit 23.3
CONSENT OF INDEPENDENT ACCOUNTANTS
The Board of Directors
Jupiter Communications, Inc.:
We consent to the inclusion in the registration statement on Form S-4 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 joint proxy statement/prospectus.
/s/ KPMG LLP
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KPMG LLP
New York, New York
July 27, 2000
