Comscore Releases October 2010 U.S. Search Engine Rankings

RESTON, VA, November 18, 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. Google Sites led the explicit core search market in October with 66.3 percent of searches conducted, an increase of 0.2 share points from September 2010.

The October 2010 qSearch figures represent the second month of results including the impact of Google Instant Search, a Google search feature that delivers results in real-time while users type their query. To learn more about how Comscore is measuring search activity as users engage with Google Instant Search, please read our blog post on the subject: http://blog.comscore.com/2010/10/comscore_september_qsearch.html

U.S. Explicit Core Search

Google Sites led the U.S. explicit core search market in October with 66.3 percent market share, followed by Yahoo! Sites with 16.5 percent and Microsoft sites with 11.5 percent. Ask Network captured 3.6 percent of explicit core searches, followed by AOL LLC Network with 2.1 percent.

Comscore Explicit Core Search Share Report*
October 2010 vs. September 2010
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch

Core Search Entity

Explicit Core Search Share (%)

Sep-10

Oct-10

Point Change

Total Explicit Core Search

100.0%

100.0%

N/A

Google Sites

66.1%

66.3%

0.2

Yahoo! Sites

16.7%

16.5%

-0.2

Microsoft Sites

11.2%

11.5%

0.3

Ask Network

3.7%

3.6%

-0.1

AOL LLC Network

2.3%

2.1%

-0.2

*“Explicit Core Search” excludes contextually driven searches that do not
reflect specific user intent to interact with the search results.

More than 16.6 billion explicit core searches were conducted in October. Google Sites ranked first with 11.0 billion searches, followed by Yahoo! Sites in second with 2.7 billion and Microsoft Sites in third with 1.9 billion. Ask Network accounted for 598 million explicit core searches followed by AOL LLC Network with 346 million.

Comscore Explicit Core Search Query Report
October 2010 vs. September 2010
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch

Core Search Entity

Explicit Core Search Queries (MM)

Sep-10

Oct-10

Percent Change

Total Explicit Core Search

16,021

16,622

4%

Google Sites

10,593

11,025

4%

Yahoo! Sites

2,682

2,735

2%

Microsoft Sites

1,791

1,919

7%

Ask Network

593

598

1%

AOL LLC Network

362

346

-4%

U.S. Total Core Search

Google Sites accounted for 64.3 percent of total core search queries conducted, followed by Yahoo! Sites with 18.5 percent and Microsoft Sites with 12.1 percent. Ask Network captured 3.2 percent of total search queries, followed by AOL LLC Network with 1.9 percent. Google’s share increased by 1.4 percentage points, primarily due to the impact of Instant Search.

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

Core Search Entity

Total Core Search Share (%)

Sep-10

Oct-10

Point Change

Total Core Search

100.0%

100.0%

N/A

Google Sites

62.9%

64.3%

1.4

Yahoo! Sites

19.2%

18.5%

-0.7

Microsoft Sites

12.5%

12.1%

-0.4

Ask Network

3.4%

3.2%

-0.2

AOL LLC Network

2.0%

1.9%

-0.1

* “Total Core Search” is based on the five major search engines, including
partner searches, cross-channel searches and contextual 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 these numbers.

Americans conducted 18.4 billion total core search queries in October with Google Sites leading with 11.8 billion searches, followed by Yahoo! Sites with 3.4 billion and Microsoft Sites with 2.2 billion.

Comscore Total Core Search Query Report
October 2010 vs. September 2010
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch

Core Search Entity

Total Core Search Queries (MM)

Sep-10

Oct-10

Percent Change

Total Core Search

17,671

18,434

4%

Google Sites

11,119

11,846

7%

Yahoo! Sites

3,394

3,416

1%

Microsoft Sites

2,204

2,229

1%

Ask Network

593

598

1%

AOL LLC Network

362

346

-4%

“Powered By” Reporting

As a part of Comscore commitment to accurately represent the continued evolution of the search landscape, Comscore is providing insight into the share of algorithmic Explicit searches that are powered by Google and Bing, and branded as such to the consumer. Google’s “powered by” share is composed of searches conducted at Google entities, as well as AOL and most of Ask’s MyWebSearch. Bing’s “powered by” share is composed of searches conducted at Bing entities as well as Yahoo! Web Search, Yahoo! Image Search and Yahoo! Video Search. Some of Yahoo!’s in-channel searches, such as movies and finance, are still provided by Yahoo!

In October, 69.2 percent of searches carried organic search results from Google, while 23.5 percent of searches were powered by Bing organic results.

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