13 June 2011 | Author: C. Tate

Google leads US search engine rankings for May

With a 65.5 market share, Google Sites led the US explicit core search market in May, up 0.1 per cent on the month before, according to comScore. Yahoo finished second with a 15.9 per cent share and Microsoft's sites came third with a 14.1 per cent share.

May is the first month in which Yahoo's new real-time search direct feature has been included in comScore's results.

The research firm tallied more than 17 billion explicit core searches in May, with Google Sites ranking first with 11.2 billion searches, a 5 per cent increase on April. Yahoo again came second with 2.7 billion searches and Microsoft took third place, having 2.4 billion searches conducted on its Bing search engine.

comScore defines explicit core search as a search that: "excludes contextually driven searches that do not reflect specific user intent to interact with the search results."

US total core searches were again dominated by Google, accounting for 63.3 per cent of the total core search queries conducted. Yahoo took the second-largest slice of the cake with 19.6 per cent and Microsoft finished third with 13.1 per cent. The Ask network and AOL ranked fourth and fifth respectively.

According to a press release, comScore said total core search is: "based on the five major search engines, including partner searches, cross-channel searches and contextual searches."

From these figures Google reasserted its dominance of search in a very comprehensive fashion, successfully fending off the Bing-hoo! alliance. However, it's still too early to see if Yahoo's search direct facility could make any changes to the search engine's market share.

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