Comscore Releases July 2009 U.S. Search Engine Rankings

RESTON, VA, August 18, 2009 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released its monthly Comscore qSearch analysis of the U.S. search marketplace. In July 2009, Americans conducted nearly 13.6 billion core searches, with Google Sites accounting for 64.7 percent search market share. Microsoft Sites grabbed 8.9 percent market share, a 0.5 percentage point gain versus June.

July 2009 U.S. Core Search Rankings

Google Sites led the U.S. core search market in July with 64.7 percent of the searches conducted, followed by Yahoo! Sites (19.3 percent), and Microsoft Sites (8.9 percent). Ask Network captured 3.9 percent of the search market, followed by AOL LLC with 3.1 percent.

* Based on the five major search engines including partner searches and cross-channel searches. Searches for mapping, local directory, and user-generated video sites that are not on the core domain of the five search engines are not included in the core search numbers.

Americans conducted 13.6 billion searches in July, down slightly for the third consecutive month as the summer months tend to see lighter overall search volume with people spending more time outdoors and on vacation. Google Sites accounted for 8.9 billion searches, followed by Yahoo! Sites (2.6 billion), Microsoft Sites (1.2 billion), Ask Network (536 million) and AOL LLC (424 million).

* Based on the five major search engines including partner searches and cross-channel searches. Searches for mapping, local directory, and user-generated video sites that are not on the core domain of the five search engines are not included in the core search numbers.

July 2009 U.S. Expanded Search Rankings

In the July 2009 analysis of the top properties where search activity is observed, Google Sites led the search market with 12.9 billion searches, followed by Yahoo! Sites with 2.8 billion. Microsoft Sites ranked third with 1.3 billion searches, up 3 percent from May, followed by eBay with 709 million. Facebook.com experienced the highest growth of the top ten expanded search properties with a 35-percent increase.

About Comscore
Comscore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world and preferred source of digital marketing intelligence. For more information, please visit www.comscore.com/companyinfo.

Press
Bill Daddi
Daddi Brand Communications
646-370-1341
press@comscore.com