comScore (SCOR) 8-K/A Financial Statements and Exhibits

Exhibit 23.1

CONSENT OF INDEPENDENT AUDITORS

We consent to the incorporation by reference in the following Registration Statements:

(1)	Registration Statement (Form S-8 No. 333-144281) pertaining to the 1999 Stock Plan and the 2007 Equity Incentive Plan of comScore, Inc., a Delaware corporation (“comScore”);
(2)	Registration Statement (Form S-8 No. 333-155355) pertaining to the 2007 Equity Incentive Plan of comScore;
(3)	Registration Statement (Form S-8 No. 333-159126) pertaining to the 2007 Equity Incentive Plan of comScore;
(4)	Registration Statement (Form S-8 No. 333-166349) pertaining to the 2007 Equity Incentive Plan of comScore; and
(5)	Registration Statement (Form S-3 No. 333-166350) pertaining to a universal shelf registration of securities by comScore of our report dated November 16, 2010 relating to the financial statements of Nedstat B.V. appearing in this Current Report on Form 8-K/A of comScore dated November 16, 2010.

/s/ Deloitte Accountants B.V.  

Amsterdam, The Netherlands 

November 16, 2010