comScore Releases December 2008 U.S. Search Engine Rankings

RESTON, VA, January 16, 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 December 2008, Americans conducted 12.7 billion core searches, a 3-percent increase versus November.

December 2008 U.S. Core Search Rankings

Google Sites led the U.S. core search market in December with 63.5 percent of the searches conducted, unchanged from November, followed by Yahoo! Sites (20.5 percent), Microsoft Sites (8.3 percent), Ask Network (3.9 percent), and AOL LLC (3.8 percent).

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comScore Core Search Report*
December 2008 vs. November 2008
Total U.S. – Home/Work/University Locations
Source: comScore qSearch 2.0

Core Search Entity

Share of Searches (%)

Nov-08

Dec-08

Point Change

Dec-08 vs. Nov-08

Total Core Search

100.0

100.0

N/A

Google Sites

63.5

63.5

0.0

Yahoo! Sites

20.4

20.5

0.1

Microsoft Sites

8.3

8.3

0.0

Ask Network

4.0

3.9

-0.1

AOL LLC

3.8

3.8

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 12.7 billion searches at the core search engines, up 3 percent from November. Google Sites handled 8 billion core searches, followed by Yahoo! Sites with 2.6 billion and Microsoft Sites with 1.1 billion.

comScore Core Search Report*
December 2008 vs. November 2008
Total U.S. – Home/Work/University Locations
Source: comScore qSearch 2.0

Core Search Entity

Search Queries (MM)

Nov-08

Dec-08

Percent Change

Dec-08 vs. Nov-08

Total Core Search

12,264

12,650

3%

Google Sites

7,784

8,036

3%

Yahoo! Sites

2,506

2,593

3%

Microsoft Sites

1,015

1,055

4%

Ask Network

494

488

-1%

AOL LLC

465

478

3%

* 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.

December U.S. Expanded Search Rankings

In the comScore December 2008 analysis of the top properties where search activity is observed, Google Sites led with 11.2 billion searches, up 4 percent versus November. Yahoo! Sites ranked second with 2.7 billion searches, followed by Microsoft Sites with 1.1 billion and AOL LLC with 740 million.

comScore Expanded Search Query Report
December 2008 vs. November 2008
Total U.S. – Home/Work/University Locations
Source: comScore qSearch 2.0

Expanded Search Entity

Search Queries (MM)

Nov-08

Dec-08

Percent Change

Dec-08 vs. Nov-08

Total Expanded Search

18,058

18,688

3%

Google Sites

10,767

11,152

4%

Google

7,976

8,247

3%

YouTube/All Other

2,791

2,905

4%

Yahoo! Sites

2,620

2,714

4%

Yahoo!

2,594

2,686

4%

All Other

26

28

8%

Microsoft Sites

1,053

1,092

4%

MSN-Windows Live

959

997

4%

Microsoft/All Other

94

95

1%

AOL LLC

725

740

2%

AOL Search Network

412

424

3%

MapQuest/All Other

313

316

1%

Ask Network

631

620

-2%

Ask.com

326

308

-6%

MyWebSearch.com/ All Other

305

312

2%

Fox Interactive Media

543

526

-3%

MySpace

535

516

-4%

All Other

8

10

25%

eBay

469

500

7%

Craigslist.org

369

387

5%

Amazon Sites

157

204

30%

Facebook.com

162

161

-1%

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