I don't blame the schools
As draconian as this sounds, I don't blame the schools for doing it. Working in higher education stateside I have seen cases of litigation over schools not preventing students from drinking themselves to death. Some parents here seem to think that a school is responsible for everything a student does, and little Jimmy doesn't accept any personal responsibility until he is 35. Even then it's "not his fault." Big news here currently is some moron who drank himself into a stupor, fell over a transformer and fried himself. Now the parents want to know why the door to the transformer room was unlocked, not why their son drank so much he couldn't tell he was in a transformer room tripping over high voltage equipment with signs all around that probably said that.
MySpace was also a discussion for our legal council. They were worried that if parties were advertised on MySpace and someone went to one and got hurt that the school would also be responsible. Ultimately the legal team decided that it wasn't worth blocking MySpace, but if you can't afford to defend yourself I'd just ban it.
It's funny how liberals whine and bitch about freedoms, yet they are the first ones to take them away to help protect me from myself. (Transfats, Smoking, etc, etc) As long as we're taking them away to protect us from ourselves it's all fine. Take them away to protect us from someone else and it's a civil liberties violation.
My choices are vote for a moron who forces me to pray to god, believe in intelligent design, ostracize homosexuals, and fight everyone on the planet that doesn't agree with them or vote for someone who feels that they ALSO know better about what's good for me than me.