blocking good or bad? ?

are blockin websites good ? well i dont think so because then kids when they are done there work hav nothing to do because there are no websies for us to go to and do stuff on. For example, meaning if we were done all our work, we cant get on to myspace or even aim. But this school keeps us bissy enough tat we dont need to go on that stuff. Also, last year youtube was blocked this year it isnt. Know we can get on and watch viedos and look up things and all. Finally we have alil freedom but i feel as if blocking of some websites are good.