Are cyber bullies more of a threat that sexual predators?

Experts that I talked to said that children are much more likely to come in contact with cyberbullies than online sexual predators. They, and area students, say the phenomenon of cyberbullying is growing. One poster commented on my story that this is just a new form of bullying - many of the folks I talked with agreed. Essentially those who are bullied don't have a safe haven at home any more unless they are not going online or know how to block cyberbullies.
What do you think can be done about it?