The ranking of best search engines, by popularity, places Google at number one, followed by Bing and Yahoo as of 2015, according to eBizMBA. Google has around 1.1 billion unique monthly visitors, while Bing and Yahoo each have approximately 300 million.
Other search engines in the top 10 are Ask, AOL, Wow, WebCrawler and Infospace. Founded in 1998 by Larry Page and Sergey Brin, Google was incorporated in 2004, the same year it moved to its headquarters, nicknamed the Googleplex, in Mountain View, California. Google is a spelling deviation of the scientific term "googol," meaning 10 to the 100th power. A googolplex is also a scientific term, meaning 10 to the power of a googol.