comScore Releases October 2011 U.S. Search Engine Rankings
RESTON, VA, November 11, 2011 – comScore, Inc., a leader in measuring the digital world, today released its monthly comScore 
qSearch analysis of the U.S. search marketplace. Google Sites led the explicit core search market in October with 65.6 percent of search queries conducted.
U.S. Explicit Core Search
Google Sites led the U.S. explicit core search market in October with 65.6 percent market share (up 0.3 percentage points), followed by Yahoo! Sites with 15.2 percent and Microsoft Sites with 14.8 percent (up 0.1 percentage point). Ask Network accounted for 2.9 percent of explicit core searches, followed by AOL, Inc. with 1.5 percent. (more…)