Microsoft to Google: Watch Your Back!

Microsoft’s (NASDAQ:MSFT) Bing search engine now accounts for 30.01 percent of all U.S. searches, according to the latest data from Experian Hitwise. Bing-powered searches — that is, searches on and — still accounted for less than half the Web traffic logged by the ubiquitous Google (NASDAQ:GOOG), but the service did log some significant gains.

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Bing itself grew 16 percent in the 12 months through April, when it accounted for 14.32 percent of all U.S. searches. And its rate of growth only seems to be improving: between March and April, Bing grew its share of the search market an impressive 5 percent. Yahoo (NASDAQ:YHOO) searches, powered by Bing, grew somewhat slower, but still at a 5 percent month-over-month rate and 7 percent year-over-year.

Meanwhile, searches on Google declined 3 percent in April 2012, compared to the previous month, and were down 5 percent year-over-year. Still, in April, almost 64.5 percent of all U.S. searches were powered by Google.

The 65 smaller search engines Hitwise tracks accounted for only 6.51 percent of U.S. searches in April.

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