Using an internet 'white list'
The school I'm in has a big banning culture, which is a pain in the backside for staff, as one member of staff will ban them, and another member will want them to use the internet for something in another class, which causes headaches for us as we're stuck in the middle of it all! I've suggested an in between ground of setting up a whitelist of approved websites, so insted of banning them outright, they can still actually use the internet in a limited capacity.
Do any of you use an internet 'whitelist' insted of banning students access out righ? Does this cause any problems for you, like the amount of time it takes to construct it, and the administration of it? If you do use one, how many websites do you have on it, and is it actually a worthwhile exercise to set it up? We use websense for our filtering, so I know it's technically possible.
Also on the same theme, if you do ban students, what constitutes a bannable offence in your school??