Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Beck Daniel F
   2. Issuer Name and Ticker or Trading Symbol
CMGI INC [CMGI] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President of the Americas Ops.
(Last)
(First)
(Middle)
58 HOLLIS STREET		 3. Date of Earliest Transaction (Month/Day/Year)
03/22/2005
(Street)

GROTON, MA 01450		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 03/22/2005   M   67,426 A $ 0.13 314,285 D  
Common Stock 03/22/2005   S   67,426 D $ 2.3247 314,285 D  
Common Stock 03/22/2005   M   72,792 A $ 0.56 314,285 D  
Common Stock 03/22/2005   S   72,792 D $ 2.3247 314,285 D  
Common Stock 03/22/2005   M   29,782 A $ 0.45 314,285 D  
Common Stock 03/22/2005   S   29,782 D $ 2.3247 314,285 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock option (right to buy) granted Dec. 18, 1998 $ 0.13 03/22/2005   M     67,426   (1) 12/17/2008 Common Stock 67,426 $ 0 0 D  
Stock option (right to buy) granted Oct. 29, 2001 $ 0.56 03/22/2005   M     72,792   (1) 10/28/2011 Common Stock 72,792 $ 0 38,888 D  
Stock option (right to buy) granted Feb. 13, 2003 $ 0.45 03/22/2005   M     29,782   (1) 02/12/2013 Common Stock 29,782 $ 0 14,890 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Beck Daniel F
58 HOLLIS STREET
GROTON, MA 01450		       President of the Americas Ops.  

Signatures

 Kevin P. Lanouette (pursuant to Power of Attorney)   03/24/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Option, when granted, vested as to (i) 25% on each of the first and second anniversary of the date of grant; (ii) 20% on each of the third and fourth anniversary of the date of grant; and (iii) 10% on the fifth anniversary of the date of grant. Effective August 2, 2004 (the date of the closing of the acquisition of Modus Media, Inc. by the issuer), one-third of the number of shares subject to the option that was not then vested became vested and exercisable. The number of shares subject to the option that will vest and become exercisable on each anniversary of the date of grant after August 2, 2004 will now be the number of shares that would otherwise have vested in accordance with the above-stated schedule, reduced by one-third. The shares subject to the option that are or become vested on or after August 2, 2004 shall be exercisable once vested.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.