May 2009 U.S. Search Engine Rankings Report

May 2009 core search rankings

Google Sites led the U.S. core search market in April with 65.0 percent of the searches conducted, followed by Yahoo! Sites (20.1 percent), Microsoft Sites (8.0 percent), Ask Network (3.9 percent) and AOL LLC (3.1 percent).
* May data does not include search activity at Microsoft Bing, which was launched on June 1. Microsoft Bing.Com will be included with June Search queries data.
** Americans conducted 14.3 billion searches at the core search engines.
Google Sites accounted for 9.3 billion core searches, followed by Yahoo! Sites with 2.9 billion and Microsoft Sites with 1.1 billion.

May 2009 U.S. Expanded Search Rankings

In the comScore May 2009 analysis of the top properties where search activity is observed, Google Sites led with 13 billion searches. Yahoo! Sites ranked second with 3 billion searches, followed by Microsoft Sites (1.2 billion) and AOL LLC (721 million).
*May data does not include search activity at Microsoft Bing.Com, which was launched on June Microsoft Bing will be included with June qSearch data.

Source: comScore