Cyberbullying is often legally defined as repeated harassment online, although in popular use, it can describe even a sharp-elbowed, gratuitous swipe. Cyberbullies themselves resist easy categorization: the anonymity of the Internet gives cover not only to schoolyard-bully types but to victims themselves, who feel they can retaliate without getting caught.
But online bullying can be more psychologically savage than schoolyard bullying. The Internet erases inhibitions, with adolescents often going further with slights online than in person. NYT
Parents need to be more aware of this type of harassment. Now it can even occur via mobile phone. Previous posting