We heard earlier this week from comScore and Hitwise, and today, still more evidence that Bing performed well in January arrived. Nielsen has released its monthly report regarding the U.S. search market, and according to the firm, Bing managed to increase its market share by exactly 1.0 percent. In December, Bing's market share was a slightly embarrassing 9.9 percent. But Nielsen indicated this afternoon that it's cracked the 10.0 mark, landing at 10.9 percent in January.