Excerpt from an extensive Bing market snapshot
Microsoft has gained some ground. Its Bing search site has steadily picked up traffic since its introduction two years ago, accounting for more than 14 percent of searches in the American market, according to comScore. Add the searches that Microsoft handles for Yahoo, in a partnership begun last year, and Microsoft’s search technology fields 30 percent of the total.
Yet those gains have not come at the expense of Google. Its two-thirds share of the market in the United States — Google claims an even higher share in many foreign markets — has remained unchanged in the last two years. The share losers have been Yahoo and smaller search players.