Blogging Rules

We have a few kids learning to blog -- they are already quite proficient using MySpace, other social-networking sites, and places like LiveJournal (a blogging-, journaling-space w/ some MySpace-type personalization features). Thusfar, we have set some verbal parameters on the "okays" and "not okays". If they are blogging FOR the library or for a school-sanctioned activity, I let them know that I do reserve the right to "filter" the posts and moderate the comments (as the sponsor). I haven't had to do that very much, but we are fairly new at this. But, when a topic was posted by a student on J.K. Rowling's announcement regarding Dumbledore's sexual orientation, you can imagine some of the comments!

Long story short, we are now writing our "blogging rules". We want the kids to be free-thinkers, discriminating, and learn to [responsibly] navigate, participate, and evaluate the world of information. We also want them to be safe while under our tutalage (and when they leave the 'nest'). I'll post more as we get our rules on paper. I’ve been searching for other sets of rules and have found some great models: one posted in a wiki by Bud Hunt (thanks, Bud) and another from Arapahoe High School, where Karl Fisch is the Director of Technology. Any thoughts? Do you have guidelines, in your school, for student blogging?