social networking- a serious problem for teenagers

      As the emerging of social networking sites, people are having a more colorful life, especially for teenagers. They have a new place to express their creative thoughts, and a new forum to explore their interests. in addition, social networking sites provide teenagers a stage to make more friends. however, even though social networks enrich the lives of teenagers, they also bring several bad effects. Cyberbullying, a way to willfully and repeatedly harm others through phones and computers, is becoming more and more common among teenagers.