Ever since the introduction of Google Search in 1997, the worldwide market share of all search engines has been rather lopsided. Google has dominated the search engine market, maintaining an 87.1 percent market share as of December 2017. The majority of Google revenues are generated through advertising. The company has also expanded its services to mail, productivity tools, enterprise products, mobile devices and other ventures. As a result, Google earned one of the highest tech company revenues in 2017 with roughly 110 billion U.S. dollars.
As of February 2017, Google had 0.46 percent successful organic search click rate, lower than its competitors Ask, Yahoo and AOL.