Comscore Releases May 2010 U.S. Search Engine Rankings

RESTON, VA, June 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 May 2010, Americans conducted 15.9 billion core searches, up 3 percent vs. April.

May 2010 U.S. Core Search Rankings

Google Sites led the U.S. core search market in May with 63.7 percent of the searches conducted, followed by Yahoo! Sites (up 0.6 percentage points to 18.3 percent), and Microsoft Sites (up 0.3 percentage points to 12.1 percent). Both Yahoo! Sites and Microsoft Sites have experienced gains due in part to the continued utilization of contextual search approaches that tie content and related search results together. (For more detail on contextual searches, please read our recent post on the Comscore Voices blog: http://blog.comscore.com/2010/06/changes_in_search_landscape.html) Ask Network captured 3.6 percent of the search market, followed by AOL LLC with 2.3 percent.

Comscore Core Search Report*
May 2010 vs. April 2010
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch

Core Search Entity

Share of Searches (%)

Apr-10

May-10

Point Change May-10 vs. Apr-10

Total Core Search

100.0%

100.0%

N/A

Google Sites

64.4%

63.7%

-0.7

Yahoo! Sites

17.7%

18.3%

0.6

Microsoft Sites

11.8%

12.1%

0.3

Ask Network

3.7%

3.6%

-0.1

AOL LLC Network

2.4%

2.3%

-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 15.9 billion searches in May, up 3 percent from April. Google Sites accounted for 10.2 billion searches (up 2 percent), followed by Yahoo! Sites with 2.9 billion (up 6 percent), Microsoft Sites with 1.9 billion (up 6 percent), Ask Network with 577 million and AOL LLC with 361 million.

Comscore Core Search Report*
May 2010 vs. April 2010
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch

Core Search Entity

Search Queries (MM)

Apr-10

May-10

Percent Change May-10 vs. Apr-10

Total Core Search

15,532

15,935

3%

Google Sites

10,006

10,158

2%

Yahoo! Sites

2,752

2,908

6%

Microsoft Sites

1,829

1,930

6%

Ask Network

574

577

1%

AOL LLC

371

361

-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.

May 2010 U.S. Expanded Search Rankings

In the May analysis of the top properties where search activity is observed, Google Sites led the search market with 14.4 billion search queries, followed by Yahoo! Sites with 3.0 billion queries and Microsoft Sites with 2.0 billion. Amazon Sites experienced substantial growth during the month with a 14-percent increase to 280 million searches.

Comscore Expanded Search Query Report
May 2010 vs. April 2010
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch

Expanded Search Entity

Search Queries (MM)

Apr-10

May-10

Percent Change May-10 vs. Apr-10

Total Internet

23,658

24,415

3%

Google Sites

13,996

14,444

3%

Google

10,556

10,822

3%

YouTube/All Other

3,440

3,622

5%

Yahoo! Sites

2,839

2,994

5%

Yahoo!

2,827

2,981

5%

All Other

12

13

8%

Microsoft Sites

1,883

2,001

6%

Bing

1,575

1,636

4%

Microsoft/All Other

308

365

19%

Ask Network

719

714

-1%

ASK.COM

327

319

-2%

MyWebSearch.com/ All Other

392

395

1%

craigslist, inc.

685

689

1%

eBay

641

647

1%

AOL LLC

604

610

1%

AOL Search Network

302

290

-4%

MapQuest/All Other

302

320

6%

Facebook.com

624

609

-2%

Fox Interactive Media

312

310

-1%

MySpace

309

307

-1%

All Other

3

3

0%

Amazon Sites

245

280

14%

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.

Contact:
Adam Lella
Comscore, Inc.
+1 (312) 775-6474
press@comscore.com