Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Riley David
 2. Date of Event Requiring Statement (Month/Day/Year)
06/09/2006		 3. Issuer Name and Ticker or Trading Symbol
CMGI INC [CMGI]
(Last)
(First)
(Middle)
C/O CMGI, INC., 1100 WINTER STREET, SUITE 4600		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Interim CFO and Treasurer
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

WALTHAM, MA 02451		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 36,196 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (right to buy) granted on June 28, 2002   (2) 06/27/2009 Common Stock 2,376 $ 0.48 D  
Stock Option (right to buy) granted on September 2, 2003   (3) 09/01/2010 Common Stock 57,500 $ 1.59 D  
Stock Option (right to buy) granted on August 2, 2004   (4) 08/01/2011 Common Stock 70,000 $ 1.39 D  
Stock Option (right to buy) granted on November 1, 2005   (5) 10/31/2012 Common Stock 70,000 $ 1.57 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Riley David
C/O CMGI, INC.
1100 WINTER STREET, SUITE 4600
WALTHAM, MA 02451		       Interim CFO and Treasurer  

Signatures

/s/ Thomas B. Rosedale (Pursuant to Power of Attorney) 06/14/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) 30,918 shares are restricted stock. Restrictions lapse as to 9,583 shares on 9/2/2006; restrictions lapse as to 10,669 shares on 8/2/2006; and restrictions lapse as to 10,666 shares on 8/2/07. There are no restrictions with respect to the remaining 5,278 shares.
(2) The option is vested and exerciseable with respect to 1,583 shares and the remaining shares vest and become exerciseable on 6/28/2006.
(3) The option is vested and exerciseable with respect to 39,530 shares and the remaining shares vest and become exerciseable in equal monthly installments until fully vested on the fourth anniversary of the grant date.
(4) The option is vested and exerciseable with respect to 32,083 shares and the remaining shares vest and become exerciseable in equal monthly installments until fully vested on the fourth anniversary of the grant date.
(5) The option vests and becomes exercisable as to 25% on the first anniversary of the date of grant and the remainder in 36 equal monthly installments thereafter.

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