Comscore Releases January 2010 U.S. Search Engine Rankings

RESTON, VA, February 11, 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 January 2010, Americans conducted 15.2 billion core searches, with Google Sites accounting for 65.4 percent search market share. Microsoft Sites grabbed 11.3 percent market share, up 0.6 percentage points versus December.

January 2010 U.S. Core Search Rankings

Google Sites led the U.S. core search market in January with 65.4 percent of the searches conducted, followed by Yahoo! Sites (17.0 percent), and Microsoft Sites (11.3 percent). Ask Network captured 3.8 percent of the search market, followed by AOL LLC with 2.5 percent.

Comscore Core Search Report*
January 2010 vs. December 2009
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Core Search Entity Share of Searches (%)
Dec-09 Jan-10 Point Change Jan-10 vs. Dec-09
Total Core Search 100.0% 100.% N/A
Google Sites 65.7% 65.4% -0.3
Yahoo! Sites 17.3% 17.0% -0.3
Microsoft Sites 10.7% 11.3% 0.6
Ask Network 3.7% 3.8% 0.1
AOL LLC Network 2.6% 2.5% -0.1

* 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 15.2 billion searches in January, up 3 percent from December. Google Sites accounted for 9.9 billion searches, followed by Yahoo! Sites (2.6 billion), Microsoft Sites (1.7 billion), Ask Network (574 million) and AOL LLC (375 million).

Comscore Core Search Report*
January 2010 vs. December 2009
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Core Search Entity Search Queries (MM)
Dec-09 Jan-10 Percent Change Jan-10 vs. Dec-09
Total Core Search 14,737 15,167 3%
Google Sites 9,688 9,920 2%
Yahoo! Sites 2,544 2,583 2%
Microsoft Sites 1,576 1,715 9%
Ask Network 545 574 5%
AOL LLC 383 375 -2%

* 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.

January 2010 U.S. Expanded Search Rankings

In the January analysis of the top properties where search activity is observed, Google Sites led the search market with more than 14 billion search queries, followed by Yahoo! Sites with 2.7 billion queries and Microsoft Sites with 1.8 billion searches. Bing experienced large growth during the month with an 11-percent increase in query volume to reach more than 1.5 billion searches. Craigslist jumped one position to #6 with 636 million searches, while Facebook grew to 395 million searches, representing a 13-percent increase from the previous month.

Comscore Expanded Search Query Report
January 2010 vs. December 2009
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Expanded Search Entity Search Queries (MM)
Dec-09 Jan-10 Percent Change Jan-10 vs. Dec-09
Total Internet 22,741 23,163 2%
Google Sites 14,019 14,045 0%
Google 10,101 10,378 3%
YouTube/All Other 3,918 3,667 -6%
Yahoo! Sites 2,629 2,670 2%
Yahoo! 2,605 2,647 2%
All Other 24 23 -4%
Microsoft Sites 1,620 1,772 9%
Bing 1,399 1,549 11%
Microsoft/All Other 221 223 1%
Ask Network 696 736 6%
ASK.COM 332 336 1%
MyWebSearch.com/ All Other 364 400 10%
eBay 680 659 -3%
craigslist, inc. 583 636 9%
AOL LLC 588 576 -2%
AOL Search Network 325 317 -2%
MapQuest/All Other 263 259 -2%
Fox Interactive Media 424 403 -5%
MySpace Sites 416 398 -4%
All Other 8 5 -38%
Facebook.com 351 395 13%
Amazon Sites 302 238 -21%

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