Is it okay for my school to do this?

[Timothy]

No, they have ZERO right to do that. That is a clear invasion of your privacy in something the school has no business in. This is typical of how schools overstep there authority and feel they can do whatever they want. Tell them to screw. Get ahold of a written letter that your school sent out saying this new "rule" and forward it to your local news channel and newspaper. At that kid has every right to post whatever he wants without the fear of the school punishing him for it, unless its a harmfull threat which doesnt seem to be the case here. There is no way you should give in to this rule, the schools job is to teach you kids math, science, english, etc, not police your personal website pages. The police doesnt even have that authority.