comScore releases May 2010 US search engine rankings

May 2010 US core search rankings

Google sites led the US core search market in May with 63.7% of the searches conducted, followed by Yahoo! sites (up 0.6%age points to 18.3%), and Microsoft sites (up 0.3 percentage points to 12.1%). 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% of the search market, followed by AOL LLC with 2.3%.

* 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.

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

* 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 US 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% increase to 280 million searches.