funnygames.nl is awesome, it has the best games. I recommend "trapoline springen" for laughs. And this other one where you're an icecream truck.. Bleh.. Cant remember what its called.. and the school has blocked access to that site.
They also blocked miniclip. Majorly sucky.
Oh and has anyone played wiz3? I think its at hecks.com.. Best game ever.