Facebook is a very popular social networking site with over eight hundred million users. As an avid user of Facebook myself, I find it hard to believe that at one point it didn't exist. In fact, it has become so much a part of people's lives that you can learn their life story just by checking their page. Their friends, likes and dislikes, relationship status, phone number, address, everything. Sounds a little dangerous. There are positive and negative effects that Facebook has on people, and they can be quite significant.