That and don't give kids unmonitored access to the internet and text-capable cell phones. There's really no reason at all for them to have those things, aside from "everyone else does."
This is just a simplistic idea. "Unmonitored" is the only useful word in it. It's true that parents need to monitor what their kids are doing.
Dont you see how taking the route of least resistance (negotiating with terrorists) can not work in the long term? The list of things she shouldnt be allowed to do but you have to allow to prevent bullying would grow day by day and make her life more and more miserable because she would be bullied into doing countless things she doesnt really even want to and instead of helping by preventing it, her parent indirectly helps the bullies by inaction.
The bullies have to be attacked directly, not indirectly. Appeasement never works and has never worked.