The document summarizes research on cyberbullying among teens. It finds that between 10-33% of youth report being cyberbullied, though most cyberbullying occurs offline at school. While not more common than online harassment, cyberbullying can be highly distressing for the 14% of teens it affects each year. New technologies like cell phones have introduced new platforms for bullying behaviors, but the underlying impulses have not changed. More coordinated research is still needed to fully understand the issue.