Microsoft has overtaken Yahoo in search for the number two spot in the United States according to comScore. Bing accounted for 15.1 percent of searches in December; Yahoo brought in just 14 percent. However, Google continues to on top with 65.9 percent of search queries conducted in December, up 0.5 percent from November.

Rounding out the top five were Ask Network and AOL, hanging steady with 2.9 percent and 1.6 percent of search queries respectively.