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Google's stock price wasn't the only thing climbing last month. The search giant's share of the U.S. Internet search market grew to more than 64 percent in October, from 61 percent a year earlier, according to results released by Hitwise today. The market research firm showed Microsoft's Live Search slipping to 7.4 percent for the month, from 10.7 percent a year ago. No. 2 Yahoo was down slightly, to 21.7 percent, from 22.3 percent.

The result is notable in part because last month's results reflect the launch window for Microsoft's redesigned Live Search service. If those changes are going to boost Microsoft's share of U.S. search queries, the Hitwise numbers aren't showing it yet.

However, Hitwise is just one of the companies tracking search market share. It will be interesting to see if the Nielsen NetRatings and comScore rankings show a similar trend for October, when they're released.