EXHIBIT 23.3


                     CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the incorporation by reference in this registration statement
on Form S-3 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. dated August 18, 2000, and to
the reference to our firm under the heading "Experts" in the Prospectus.


/s/  KPMG LLP

KPMG LLP

San Francisco, California
August 18, 2000