In this video, Motley Fool analysts John Reeves and David Meier discuss Facebook (NASDAQ:FB) stock. For anyone who still sees this stock as "just a failed IPO," Dave has three reasons why you should change your mind quickly, before you miss this upside. He discusses Facebook's growth not only with users, but with advertisers, as well, and he tells us how Facebook is improving at measuring the effectiveness of its ads. Finally, he tells investors about the massive amount of data Facebook has access to, and its recent ability to monetize mobile while still delivering an incredible mobile experience.