Our school uses URL keyword and category filtering which is relatively easy to bypass with the help of either remote desktop, VPN or just simple proxies which doesn't work too well. V
VPN networks might cost money but if one can get a hang to his/her friends VPN network it should not be a problem at all.
Remote Desktops largely depends on your home's line speeds. Something like Annex L or Annex M is recommended.
Proxies aren't the best way to get through the filter. They are slow and full of rubbish ads.
Another new possible way of doing it
according to : http://forums.whirlpool.net.au/forum-replies.cfm?t=1414050&p=4#r73
there should be newer way and possibly a easier way to break through the filter by cutting the URL packet into multiple fragments so the filter cannot read the URL packets correctly and thus letting them through.
