I agree with cinderella that the hypocrisy that students will see from this can easily have far worse effects than a social networking site.
As I said earlier, schools should not have control over what their students do out of school. I don’t mind if schools block Facebook on their own computers in the computer lab. But it should not be in the school’s power to control what their students do OUT of school. That is what PARENTS are for. Too often, parents will point fingers at the schools for things that they themselves should be responsible for.
Also, I don’t like when people throw blame at objects instead of taking the blame themselves. For example, saying “Facebook is bad, the Internet is evil, etc..” That is just foolish. Everything can be used in a good or bad way. It is US who make that choice. If someone uses Facebook in a bad way, it’s not because Facebook is bad. It’s because the PERSON made the CHOICE to use it in a bad way. The PERSON is to blame, not the OBJECT.