comScore, a leader in digital media measurement, today released its monthly qSearch analysis of activity across competitive search engines. In February 2007, Google Sites captured 48.1 percent of the U.S. search market, gaining 0.6 share points from the previous month. Yahoo! Sites maintained its second place ranking with 28.1 percent of U.S. searches, followed by Microsoft Sites (10.5 percent), Ask Network (5.0 percent) and Time Warner Network (4.9 percent).