<PAGE>
Exhibit 23.4
CONSENT OF INDEPENDENT ACCOUNTANTS
We consent to the incorporation by reference in this registration statement on
Form S-8 of CMGI, Inc. of our report dated March 31, 2000, with respect to the
consolidated balance sheet of AdForce, Inc. as of December 31, 1999 and the
related consolidated statements of operations, common stockholders' equity
(deficit) and cash flows for the year ended December 31, 1999, which report
appears in the Form 8-K of CMGI, Inc. filed August 17, 2000.
/s/ KPMG LLP
KPMG LLP
San Francisco, California
December 22, 2000
