Recently read that the percent of US Web searchers who use Google increased from 57% in September to 58.5% in October. While each of the top five Web search providors all showed at least 5% growth in the number of searches, Google was the only to increase its share of the market.
Yahoo had 22.9% of the US search market. Microsoft slipped to 9.7%. Ask was flat at 4.7% and Time Warner / AOL fell to 4.2%