It most certainly is the school's responsiblity to determine what kind of atmosphere they want to maintain in a private school.
Ever been around teens? geesh MySpace dominates a good part of the conversation.
yes, I have two daughters, both of whom are or have been on myspace.com. myspace.com breeds a lot of mischief.
Certainly the private school can dictate what cannot be done at the school. i just don't think it can dictate what can be done outside of the school.
The private school does have the right to turn away children who don't meet its criteria, and if the school wishes to turn away children who have a myspace account, it's the school's perogative