US search engine market shares in October 2008

Domain October 2007 September 2008 October 2008
www.google.com 64.49% 71.16% 71.70%
search.yahoo.com 21.65% 18.06% 17.74%
search.msn.com 7.42% 5.36% 5.40%
www.ask.com 4.76% 3.63% 3.53%
Source: Hitwise