In March with 66.4 percent of search queries conducted on Google.com, stated comScore comScore in its monthly comScore qSearch analysis of the U.S. search marketplace.
According to comScore reports, Microsoft's Bing followed Google with 15.3 percent search market share. And, Yahoo at number three had 13.7 percent of U.S. search market share.
Ask Network accounted 3.0 percent of explicit core searches, followed by AOL, with 1.6 percent.
comScore also reporting that 18.4 billion explicit core searches were conducted in March, with Google ranking first with 12.2 billion (up 4 percent).
Bing ranked second with 2.8 billion searches (up 5 percent), followed by Yahoo! with 2.5 billion (up 4 percent).
Ask with 555 million (up 4 percent) ranked firft, followed by AOL with 285 million (up 7 percent).
Also, in March, 68.6 percent of searches carried organic search results from Google, while 25.9 percent of searches were powered by Bing (versus 26.2 percent in February).