Google and Microsoft Grow Search Market Share in October

Search giant Google grew its market share marginally in October, as did its major rival Microsoft, according to data from online measurement firm comScore. Yahoo and AOL saw their share of searches decline, meanwhile, alongside

Following the search alliance reached by Yahoo and Microsoft last year, market share for the pair appears to have stabilized at around 28 percent, fluctuating by less than 1 percentage point(0.1) since August.

Explicit Core Share* of U.S. Searches Among Leading Providers, October 2010 vs September 2010
  Share of Searches (%)
Domain September 2010 October 2010

Month-over-Month Point
Change (%)

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 Network 2.3 2.1 -0.2

Note: Data is 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.

*Excludes contextually driven searches that do not reflect specific user intent to interact with search results.

Source: comScore 2010

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