Monster Worldwide 10-Q 2009 Q2 Quarterly report

Exhibit 15.1

July 31, 2009

Securities and Exchange Commission
450 Fifth Street N.W.
Washington, D.C. 20549

We are aware that Monster Worldwide, Inc. has incorporated by reference in its Registration Statements on Form S-8 (Nos. 333-81843, 333-63631, 333-50699, 333-18937, 333-131899, 333-151430 and 333-160196) our report dated July 28, 2009, relating to the Company’s unaudited interim consolidated financial statements appearing in its quarterly report on Form 10-Q for the quarter ended June 30, 2009. Pursuant to Regulation C under the Securities Act of 1933 (the “Act”), that report is not considered a part of the registration statement prepared or certified by our firm or a report prepared or certified by our firm within the meaning of Sections 7 and 11 of the Act. It should be noted that we have not performed any procedures subsequent to July 28, 2009.

/s/ BDO SEIDMAN, LLPBDO Seidman, LLP

New York, New York