Coming from a background where bullies were people who threatened and sometimes used real physical violence against others I have a low opinion of those who talk about speech as a form of bullying and nothing but contempt for those who claim we can unconsciously hurt others through words alone. I've just read a great blog post that clarifies matters brilliantly.
It also got me thinking about the other side of the equation. To me anti-bullying is stopping bullies, with violence if necessary. It requires identifying aggressors rather than victims. It does not require a lot of posturing and loud declarations that we need to have important conversations. It requires us to recognize that bullies use their power and prestige to gain leverage to gain power over others. If you want to identify the bullies in a school setting start by looking at the teachers' favourites; every teachers' favourite is not a bully but most bullies are teachers favourites. And it requires observation and confrontation.