Google is holding its leading position in the global search market, according to a new study from comScore.

Google leads the U.S. core search market with 65.7 percent of all searches conducted, followed by Yahoo! (17.3 percent), and Microsoft (Bing) (10.7 percent). Ask captured 3.7 percent of the search market, followed by AOL with 2.6 percent.

comScore Core Search Report*
December 2009 vs. November 2009
Total U.S. – Home/Work/University Locations
Source: comScore qSearch
Core Search Entity Share of Searches (%)
Nov-09 Dec-09 Point Change Dec-09 vs. Nov-09
Total Core Search 100.0% 100.0% N/A
Google 65.6% 65.7% 0.1
Yahoo! 17.5% 17.3% -0.2
Microsoft 10.3% 10.7% 0.4
Ask 3.8% 3.7% -0.1
AOL 2.8% 2.6% -0.2

* 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.