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A webpage displaying Google Inc.'s home page is seen on a computer monitor in San Francisco, California, U.S., on Thursday, July 14, 2011. Google inc., owner of the world's largest Internet-search engine, reeported sales and profit that topped analysts's estimages, a sight the company is benefiting from efforst to expand in mobile and display advertising. Photographer: David Paul Morris/Bloomberg via Getty Images

A webpage displaying Google Inc.'s home page is seen on a computer monitor in San Francisco, California, U.S., on Thursday, July 14, 2011. Google inc., owner of the world's largest Internet-search engine, reeported sales and profit that topped analysts's estimages, a sight the company is benefiting from efforst to expand in mobile and display advertising.  Photographer: David Paul Morris/Bloomberg via Getty Images