美國Google 12月搜尋稱冠、Bing下滑
Nielsen的研究，Google在十二月繼續雄據搜尋市場，後面則跟著Yahoo和微軟
- Nielsen Reports December U.S. Search Rankings
An estimated 6.7 billion search queries were conducted at Google Search, representing 67.3 percent of all search queries conducted during the given time period.