proxy s at school

i no this doesnt have to do eit combat arms expet for going on youtube and watching tutrials of hax . i need a proxy server website so i can go on youtube from school u guys no how some sites are blacked sometimes
well i need a proxy server site to go on them please put the url of the site
in ur post i will thank u. BTW some proxy sites are blocked at my school.
any site that has the word proxy in it might be blocked.