According to the research of ComScore, Microsofts Bing Search Engine and other websites fielded a total of 2.75 billion search requests in December of 2011 compared to 2.65 billion search requests handled by Yahoo translating to a market share of 15.1 percent and 14.5 percent respectively. As you expected the Microsoft is far behind Google, which processed a whopping 12 billion search requests during the month, represents a still dominant market share of 65.9 percent.