If you use firefox there is an extension that switches you between proxy servers with various intervals.
the second option is to google a list of free proxy servers, then go into internet explorer > tools > internet options > connection tab, then lan settings, and type in your proxy server. I used to do this all the time in highschool because they would block sites using sonicwall or whatever else they had. It was such a simple method and usually works pretty decent.
The third option is to just use something like http://www.proxify.com
the second option is to google a list of free proxy servers, then go into internet explorer > tools > internet options > connection tab, then lan settings, and type in your proxy server. I used to do this all the time in highschool because they would block sites using sonicwall or whatever else they had. It was such a simple method and usually works pretty decent.
The third option is to just use something like http://www.proxify.com