Now the figures are small, but still it shows that google is slowly losing out to bing.

Computerworld - Google's share of the U.S. search engine market has dropped below 65% for the first time in two years, new data shows.
Google, which has long been the dominant search engine in the U.S. and around the world, slipped from 65.1% of the U.S. market in July to 64.8% last month, reported comScore, an Internet traffic monitoring company.
Google's loss, while small, seems to be Microsoft Bing's gain.

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Google slips to lowest search share in two years - Computerworld