Google accounted for 67.25 percent of US searches in the four weeks ended March 29, 2008.

This is the highest proportion of searches it has ever achieved, up some 5 percent from a year earlier when it accounted for 64.13 percent of searches, according to Hitwise (via MarketingCharts.)

Yahoo Search, MSN Search and Ask.com received, respectively, 20.29 percent, 5.25 percent and 4.09 percent of US searches in March. The remaining 46 search engines in the Hitwise Search Engine Analysis Tool together accounted for 1.72 percent of US searches.

Ask.com was up 18 percent year-over-year, though down from the previous month. Yahoo and MSN were both down month-over-month as well as year-over-year.

Search Traffic to Key Industries

Search engines remain the primary way for internet users to navigate to various key industry categories.

From March '07 to March '08, the Travel, Entertainment, Business and Finance and Sports categories increased by double digits their share of traffic coming directly from search engines.