Launched eight years ago in Mark Zuckerberg's dorm room, Facebook snowballed in recent years. The company makes money in two ways: Selling ads and collecting a fee from the app makers who use its Facebook Credits system.
Facebook has no plans to ever charge its members for using the site. As Zuckerberg wrote in a letter to future shareholders: "We don't build services to make money; we make money to build better services."
