Proxy server list: Its a really big one around 1700. check out this file>> proxy<<.
Since all the servers which were created keeps on getting banned after few days or months in colleges. So here is the way how can you access newly created servers. There are newsletters which directly send you newly created proxy servers.
EverydayProxy: is one of the solution. It is a yahoo group and you can join the Everyday Proxy group and receive lots of new working proxies every day from popular proxy provider Proxy.org.
DDDay, Anonymode.info, free-proxy-a-day, Proxy Emailer, dmoz, Daily Feed of Web Proxy Servers These are few more similar solutions. If you can reach any of them through any other proxy server(check from list) and subscribe to their newsletter, your problem for proxy server is solved forever. Check out which one works for you.