Facebook, in my opinion, has evolved away from the social media circle.  Facebook has become a personal representation of a user's self.  Their thoughts, their stories, their faults, and their successes. Their lovers, their children, their dreams, and their failures. Their taste in food, movies, and books. Their travels before, currently, and what is planned for the future.


Facebook was always an attempt to be a representation of ones self, but with the concept of sharing news or other information with your friends, that gave Facebook the social media title.  Now social media is everywhere, in everything.  And all social media integrates with your Facebook Profile (Timeline).  

Pretty soon, if you allow it, almost every application that you use on a regular basis will integrate directly with your Facebook Timeline. Some people are afraid of automatic sharing, but with the privacy settings Facebook keeps making easier to manage - it isn't really a valid complaint.
i.e.  You are using 'Nike Run' to track your progress but don't want the app to automatically upload to all your friends, so you can set it to Family only.  Or just to yourself only. That way you can still reference later as Nike collects a log of your runs right on your Facebook Timeline.

I like to think of Facebook as a live, interactive 'White Pages' of your friends, family, co-workers and acquaintances.  Whereas the business Facebook Pages are turning into live, interactive Yellow Pages.  A recent ex-employee of Google quoted in his blog, ‘I couldn’t even get my own teenage daughter to look at Google+ twice, “social isn’t a product,” she told me after I gave her a demo, “social is people and the people are on Facebook.”  

Facebook is not just social media, your profile and interactions are a personal representation of yourself ...on the Internet.  So use it wisely.