Setup a VNC client on the school computer and a VNC server on your home computer.. Then remote desktop into your computer at home and browse myspace from school.
School won't be able to tell what you are doing, because well.. YOU ARE DOING IT FROM YOUR HOME COMPUTER MUAHAHAHHAAH HAHAHAHA
May I suggest http://www.realvnc.com/
OR
1:
The first and most common way of using google to bypass blocked sites is just to search for the site and then clicked the "cached" link that appears on google. Easy, simple, and frequently works for static information.
2:
Passing the site through google translator works well as well. Here's the URL to use:
http://www.google.com/translate?langpair...
(where blockedsite.com is the site that you wish to visit)
This translates the site from english to english and works because the ip address will appear as google instead of you. Here's a link to tech-recipes passed through the translator as an example. You can actually do this with any langpair. Change en|en in the URL above to spanish by using es|es and it still works.
3:
My unique method that I have not seen described before is to search through google mobile. Google mobile will "convert as you go" very similiar to the translation method above.
Just search for your site with google mobile and click on the link it provides. Here's is tech-recipes brought up through google mobile search. Once again, this will allow you to bypass any blocks because the IP request comes from google not for you.
Like the translation method above, google will continue to "proxy" as you continue to visit links through the site. The only side effect of this method is that google formats the site for a mobile device.
Source(s):
Got this information from another thread as well as me.