Google.com led the explicit core search market in February with 66.4 percent of search queries conducted, according to a latest comScore qSearch analysis report of the U.S. search marketplace.
Microsoft's Bing with 15.3 percent was number two search engine gained (0.1 percentage points from previous month).
Yahoo.com at #3 recorded 13.8 percent search market share. Ask.com accounted 3.0 percent of explicit core searches, followed by AOL.com with 1.5 percent.
comScore is also reporting that out of the total 17.6 billion explicit core searches conducted in February 2011, Google.com ranked first with 11.7 billion.
Bing ranked second with 2.7 billion searches, followed by Yahoo with 2.4 billion.
Ask.com with 535 million (up 2 percent) was at number fourth. At number five, AOL recorded 266 million.
In February, "68.6 percent of searches carried organic search results from Google (versus 68.4 percent in January) while 26.2 percent of searches were powered by Bing (versus 26.5 percent in January)," comScore reported.