So you have a Facebook fan page but digging into all of the Facebook analytics can become confusing or overwhelming. Try these two tools that will allow you to assess your Facebook fan page by simply copying and pasting the link into application.
LikeAlyzer
LikeAlyzer does a quick scan of your Facebook page to see how active you are, if you posting at the right time, and if your fans are engaged. As it stands now the tool is completely free but I suspect the more it catches on, the more likely the company will be to add on page features.
Fan Page Karma
Fan Page Karma is an awesome tool that allows you to see your top and weakest post on in one place. For a fee Fan Page Karma will also analyze your competitors accounts and allow you to track other social media platforms as well (Twitter, Google + and Instagram). One thing I noticed is on Facebook video out performs any other form of media.