UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form 13F

                               Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended:  December 31, 2000

Check here if Amendment [  ]; Amendment Number:  _____
  This Amendment (Check only one): [ ] is a restatement.
                                   [ ] adds new holdings entries.

Institutional Investment Manager Filing this Report:

CMGI, Inc.
100 Brickstone Square
Andover, MA 01810

Form 13F File Number:  028-05757


The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Andrew J. Hajducky, III
Executive Vice President, Chief Financial Officer and Treasurer
(978) 684-3600


Signature, Place and Date of Signing:


/s/ ANDREW J. HAJDUCKY, III
- ---------------------------
Andover, Massachusetts
February 11, 2001

Report Type (Check only one):

[X]  13F HOLDINGS REPORT.  (Check here if all holdings of this reporting
     manager are reported in this report.)

[ ]  13F NOTICE. (Check here if no holdings reported are in this report, and
     all holdings are reported by other reporting manager(s).)

[ ]  13F COMBINATION REPORT. (Check here if a portion of the holdings for this
     reporting manager are reported in this report and a portion are reported by
     other manager(s).)




                              Form 13F SUMMARY PAGE

                          REPORTING MANAGER: CMGI, Inc.


Report Summary:

Number of Other Included Managers: 3

Form 13F Information Table Entry Total: 28

Form 13F Information Table Value Total: $442,916 (thousands)


List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all
institutional investment managers with respect to which this report is filed,
other than the manager filing this report.

1.       CMG@Ventures, Inc.                          File No. 028-05751

2.       CMG@Ventures Capital Corp.                  File No. 028-05755

3.       CMG@Ventures Securities Corp.               File No. 028-05763




                           FORM 13F INFORMATION TABLE
                          REPORTING MANAGER: CMGI, Inc.

ITEM 4: ITEM 5: FAIR SHARES ITEM 8: ITEM 2: ITEM 3: MARKET OR ITEM 6: VOTING AUTHORITY ITEM 1: TITLE OF CUSIP VALUE PRINCIPAL SH/ INVESTMENT ITEM 7: (A) (B) (C) NAME OF ISSUER CLASS NUMBER (000) AMOUNT PRN DISCRETION MANAGERS SOLE SHARED NONE CMGI, Inc. COM 125750109 1,310 234,100 SH DEFINED 234,100 divine interVentures, inc. COM 255404105 7,421 4,749,287 SH SOLE 4,749,287 eMachines, Inc. COM 29076P102 413 1,100,055 SH DEFINED 1,100,055 Engage, Inc. COM 292827102 113,905 151,873,081 SH SOLE 151,873,081 GLOBALMEDIA.COM COM 37935A109 130 2,082,430 SH DEFINED 2,082,430 HealthCentral.com COM 42221V106 47 300,000 SH DEFINED 300,000 Hollywood Entertainment COM 436141105 1,291 1,214,878 SH DEFINED 2 1,214,878 Corporation Hollywood Entertainment COM 436141105 22 20,297 SH DEFINED 1 20,297 Corporation Hollywood Entertainment COM 436141105 2,473 2,327,934 SH SOLE 2,327,934 Corporation Juno Online Services, COM 482048105 781 1,190,162 SH DEFINED 1,190,162 Inc. marchFIRST, Inc. COM 966834103 5 3,045 SH DEFINED 1 3,045 Marketing Services COM 570907105 2,562 2,157,061 SH SOLE 2,157,061 Group, Inc. MotherNature.com, Inc. COM 61978K105 1,102 1,224,307 SH DEFINED 2 1,224,307 MotherNature.com, Inc. COM 61978K105 11 12,367 SH DEFINED 1 12,367 NaviSite, Inc. COM 63935M109 94,024 40,115,979 SH SOLE 40,115,979 Netcentives, Inc. COM 64108P101 6,460 1,694,492 SH SOLE 1,694,492 PRIMEDIA Inc. COM 74157K101 95,500 8,000,000 SH SOLE 8,000,000 Stancorp Financial COM 852891100 8 159 SH DEFINED 159 Group, Inc. Techlabs, Inc. COM 87833L103 2,737 842,045 SH DEFINED 842,045 Terra Networks, S.A. COM 32,953 3,119,767 SH DEFINED 1 3,119,767 Terra Networks, S.A. COM 23,141 2,190,892 SH DEFINED 2,190,892 Ventro Corporation COM 163595101 922 921,908 SH DEFINED 2 921,908 Vicinity Corporation COM 925653107 13,627 4,590,058 SH DEFINED 2 4,590,058 Vicinity Corporation COM 925653107 764 257,205 SH DEFINED 1 257,205 Vicinity Corporation COM 925653107 138 46,364 SH DEFINED 1 46,364 Virage, Inc. COM 92763Q106 5,793 1,077,709 SH DEFINED 1,077,709 Yahoo! Inc. COM 984332106 16,461 547,570 SH DEFINED 1 547,570 Yahoo! Inc. COM 984332106 18,915 629,183 SH DEFINED 3 629,183