IMO Facebook (and other social media outlets) carry more problems based on the way users behave than what FB does with your information. FB builds profiles from its users that it sells to its advertisers and other marketing entities. It's an unavoidable process on the internet these days. Pretty much any major website uses your information, from account specific info to your clicks, to advertise to you. If you use a search engine, it is creating an advertising profile. Google is definitely the master of profiling its users. It combines all your search, youtube, gmail, etc. content and clicks to create specific search engine results and advertising. Google isn't the only one doing it. All the search engine and free email providers do it. The news websites and forum websites are also very big into it. Anything you do online is "content" that can be used to shape advertising. The internet is a great resource but it isn't free because content providers like you. You're the product.