You could then give them your unhip messages about pratical matters after you've got them hooked.
I haven't actually seen any sites with practical, more workable advice on the students' rights/freedom/speakandbeheard/tryingtostayinoffensive issue - how'd I know it'd work or not 'till it's been tried? Anyway, it seems like a lot the people who go on the really extremist-seeming sites are either not really serious about change and just wanna seem cool, or have an interesting record of teacher assault and exclusions. (Note I didn't say all)