Teenagers also use the internet to help them with homework;in such cases,they spnd at least three hours a week searching for useful information.In short,teen social networking sites give teenagers the opportunit to be the person they want the world to know.They can begin a new life in cyberspace
But we should bear in mind the dangers of social networking.
For example:teens sometimes post texts or photos online that they later regret;private information could include their address,phone number or when the family will be taking a long vacation,