Hi Artchic, firstly I'm really sorry this has been happening to you
When people bully it's often about their problems not about you, but you know that anyway right??
Do the places where this is happening on the internet have sections where you can forward concerns or complaints to, where you could report them??
There are laws on cyber bullying so they should required to act responsibly in the case of a complaint.
So report.......report........report............
And again please try not to let it effect the way you feel about yourself, it says everything about them, rather than about you.
Here's a couple of links that might help (??):
Policies on Bullying
Cyberbullying Stats Show Massive Occurance Rate
But remember here (PC!!) is a safe place to talk if you want/need to.............

Alison