Face is a social network site. As of 2009, it was ranked as the most popular social site by compete (compete is a traffic measuring site). Facebook is owned by Mark Zuckerberg (founder), Eduardo Saverin, Dustin Moskovitz and Chris Hughes. They were Mark’s roommate and fellow computer science classmates.
Before you login into facebook, you would need to register with the site. In the registration process, you are required to enter in your preferred facebook login details. After registering, you can login into facebook.