According to 'avoidfacebook.com', Facebook has negative effects on teens. Addiction to facebook is the major concern of this focus group. The author suggests that "You will find 7 negative effects of this social networking site that should encourage you to start avoiding it."
The author concludes, "Given these negative effects of Facebook it is up to you to decide the degree to which you want this social networking site to enter into your life. Getting addicted to Facebook is certainly going to increase problems in your life, but if you can restrict or avoid the use of this non-productive aspect of your life, you are going to stay away from troubles. Hence, it is up to you to decide how you want to use Facebook."