comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, released its monthly comScore qSearch analysis of the U.S. search marketplace on Oct 17. In October 2009, Americans conducted 14.3 billion core searches, with Google Sites accounting for 65.4 percent search market share, up from 64.9 percent in September. Microsoft Sites grabbed 9.9 percent market share, up 0.5 percentage points versus September.
October 2009 U.S. Core Search Rankings
Google Sites led the U.S. core search market in October with 65.4 percent of the searches conducted, followed by Yahoo! Sites (18.0 percent), and Microsoft Sites (9.9 percent). Ask Network captured 3.9 percent of the search market, followed by AOL LLC with 2.9 percent.
Read the full press release here