EXHIBIT 23.4 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our reports dated as follows: o June 29, 1999 relating to the financial statements and the financial statement schedule of AltaVista, o April 2, 1999 relating to the financial statements of Zip2 Corporation, and o June 9, 1999, except as to Note 12, which is as of July 2, 1999, relating to the financial statements of Shopping.com which appear in the CMGI, Inc. Current Report on Form 8-K dated June 29, 1999. We also consent to the reference to us under the heading "Experts" in such Registration Statement. /s/ PricewaterhouseCoopers LLP San Jose, California August 18, 2000