Google was founded in 1998 by Larry Page and Sergey Brin as a research project at Stanford University to develop a new type of search engine. It analyzes backlinks between websites to produce more relevant search results than those ranking results solely based on how often terms appear on pages. Google's IPO in 2004 raised $1.67 billion. Today it is the world's largest search engine with a 53.6% market share and earns revenue through advertising. In addition to search, Google offers services like Gmail, Google Maps, Google Translate, and Android.