Online chats and text messages aren't just how teens stay in touch with their friends, it's also a place where bullies can find them too.
A new study from the U.S. Centers for Disease Control and Prevention finds bullying is a growing problem online.
In 2000, six-percent of internet users, ages 10 to 17, reported online harassment. That number doubled by 2005.
The CDC says if a child is skipping school or spending time in detention, parents may need to look past what they see at school. The child may be suffering from a more discreet harassment online.