Nielsen Online yesterday its rankings of U.S. search share for June, with overall search increasing 27.0 percent year over year to 10 billion searches. Google had a year over year increase of 42.1 percent and received 66.1 percent of searches. Google’s had it highest percentage of searches ever, surpassing March of this year when it received 64.2 percent. Yahoo had a year over year increase of 24 percent and received 16.2 percent of searches. Microsoft had a year over year decrease of 20.7 percent and received 8.8 percent of searches. Microsoft’s percentage of searches was it lowest in the last two years despite the launch of the rebranding of their search engine as Bing at the beginning of the month.