Microsoft’s Bing decision engine has finally reached the number two ranking of search engines in America in December 2011. Bing formerly known as Live Search was launched officially in early June 2009. According to comScore, the decision engine captured 15.1% market share in December, compared to exactly 15.0% share in November. This was an increase of 0.1% share.
Bing signed a 10-year contract with Yahoo! Search in July 2009 and formed the Search Alliance. After getting approval from lawmakers from America and Europe, the decision engine is now powering Yahoo! Search worldwide, except in Japan which is still powered by Google search engine.
Yahoo! market share dropped to 14.5% share in December, compared to 15.1% share in November (a drop of 0.6% share). The combo Bing and Yahoo dropped to 29.6% share in December, compared to 30.1% share in November (a drop of 0.5% share).
Google Sites maintained the number one ranking of search engines in America in December 2011 with 65.9% market share. This was an increase of 0.5% from November 2011.