Face book is online social networking service headquarter in Menlo Park, California. This website was established in February 4, 2004, by Mark Zuckerberg with his Harvard College roommates and fellow students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes. In founders had initially limited the website's membership to Harvard students, but later expanded to colleges in the Boston area, the Ivy League, and Stanford University. It is gradually added support for students at various other universities and later to high-school students. Since 2006, anyone who is at least 13 years old was allow to became a registered user of the website, though the age requirement may be higher & depending on applicable local laws. Its name comes from a colloquialism for the directory given to it by American universities' students. On January 15, 2013, Face book announced Face book Graph Search, which provides the users "precise answer, " rather than a link to an answered by leveraging the data present on its site. Face book emphasized that the features would be "privacy-aware, " returning only results from content already shared with the user.