Facebook is a Web site running a social network. The site was founded by Mark Zuckerberg, a former student at Harvard University, on February 4, 2004.The site is free to use, does not charge money for its use, and allows the user to join to "social sludge" to which he belongs
(City, workplace, school, religion) and create with the rest of the group communication and interaction.Users can create their own "friends list"(And send them messages) and create your own personal profile.
Mark Zuckerberg founded the site when he was a student at Harvard University. The site was initially limited to university students only, and the web site slowly expanded to Other places, until in 2006 has become open to all of the people.The site is currently seventh in the most popular web site on the network.