Bing continues to gain search market share ... from Yahoo

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Bing, the nearly 6-month-old search engine from Microsoft Corp., has steadily been capturing more of the Web search market. But instead of stealing users from market leader Google Inc., Bing is still siphoning them from ally Yahoo Inc.

Bing captured 10.3% of the search pie in November, according to the latest numbers released by ComScore Inc and reported today by the Associated Press. That’s up from 9.9% the month before. But Yahoo’s share decreased by about the same margin, dropping from 18.0% to 17.5% during the same period.

Yahoo and Microsoft, which signed a deal in late July to allow Microsoft to operate the search engines for both companies, have not been able to boost their combined market share much past 28%, where it’s been hovering at least since the debut of Bing.

Meanwhile, market leader Google has been slowly but surely gaining share, rising from 65% in June, when Bing launched, to 65.6% in November.

-- David Sarno