- comScore, Thursday, June 14, 2012 11:58 AM
comScore has released its May 2012 U.S. search engine rankings, and there were few changes. Google kept the lead with 66.7% market share, up from .02% in April. Microsoft sites followed with 15.4%,
with no sequential change. Yahoo sites slipped a bit from 13.5% to 13.4%. Ask and AOL rounded out the top five.
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