Comscore Releases February 2010 U.S. Search Engine Rankings

RESTON, VA, March 10, 2010 – 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 February 2010, Americans conducted 14.5 billion core searches, with Google Sites accounting for 65.5 percent search market share.

February 2010 U.S. Core Search Rankings

Google Sites led the U.S. core search market in February with 65.5 percent of the searches conducted, followed by Yahoo! Sites (16.8 percent), and Microsoft Sites (11.5 percent). Ask Network captured 3.7 percent of the search market, followed by AOL LLC with 2.5 percent.

Comscore Core Search Report*
February 2010 vs. January 2010
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Core Search Entity Share of Searches (%)
Jan-10 Feb-10 Point Change Feb-10 vs. Jan-10
Total Core Search 100.0% 100.0% N/A
Google Sites 65.4% 65.5% 0.1
Yahoo! Sites 17.0% 16.8% -0.2
Microsoft Sites 11.3% 11.5% 0.2
Ask Network 3.8% 3.7% -0.1
AOL LLC Network 2.5% 2.5% 0.0

* 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 14.5 billion searches in February, down 5 percent from January. Google Sites accounted for 9.5 billion searches, followed by Yahoo! Sites (2.4 billion), Microsoft Sites (1.7 billion), Ask Network (540 million) and AOL LLC (358 million).

Comscore Core Search Report*
February 2010 vs. January 2010
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Core Search Entity Search Queries (MM)
Jan-10 Feb-10 Percent Change Feb-10 vs. Jan-10
Total Core Search 15,167 14,472 -5%
Google Sites 9,920 9,475 -4%
Yahoo! Sites 2,583 2,433 -6%
Microsoft Sites 1,715 1,667 -3%
Ask Network 574 540 -6%
AOL LLC 375 358 -5%

* 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.

February 2010 U.S. Expanded Search Rankings

In the February analysis of the top properties where search activity is observed, Google Sites led the search market with 13.5 billion search queries, followed by Yahoo! Sites with 2.5 billion queries and Microsoft Sites with 1.7 billion. Facebook.com experienced significant growth during the month with a 10-percent increase to 436 million searches, while craigslist, inc. jumped one position to #5 with 629 million searches.

Comscore Expanded Search Query Report
February 2010 vs. January 2010
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Expanded Search Entity Search Queries (MM)
Jan-10 Feb-10 Percent Change Feb-10 vs. Jan-10
Total Internet 23,163 22,271 -4%
Google Sites 14,045 13,482 -4%
Google 10,378 9,929 -4%
YouTube/All Other 3,667 3,553 -3%
Yahoo! Sites 2,670 2,509 -6%
Yahoo! 2,647 2,496 -6%
All Other 23 13 -43%
Microsoft Sites 1,772 1,720 -3%
Bing 1,549 1,498 -3%
Microsoft/All Other 223 222 0%
Ask Network 736 689 -6%
ASK.COM 336 300 -11%
MyWebSearch.com/ All Other 400 389 -3%
craigslist, inc. 636 629 -1%
eBay 659 624 -5%
AOL LLC 576 549 -5%
AOL Search Network 317 299 -6%
MapQuest/All Other 259 250 -3%
Facebook.com 395 436 10%
Fox Interactive Media 403 391 -3%
MySpace 398 388 -3%
All Other 5 3 -40%
Amazon Sites 238 210 -12%

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