Proxy servers are commonly used by people, especially students and people in workplace, to bypass censors or firewalls set by the system administrators. So, even if the system admin blocks websites such as MySpace, Orkut or Facebook, you can sort of unblock the censor settings by using a web proxy.
CoralCDN is a free peer-to-peer content distribution network, comprised of a world-wide network of web proxies and name servers. Its servers are placed in the United States. It can accelerate the loading speed of the websites and allows a user to run a web site that offers high performance and meets huge demand. A peer-to-peer DNS layer transparently redirects browsers to participating caching proxies, which in turn cooperate to minimize load on the source web server. It can also be used as a free online web proxy server. But it does not support Cookies, so it can only be used to visit websites, rather than login to your account.
A preliminary deployment of CoralCDN has been online since March 2004, running on the PlanetLab testbed. As of January 2006, it receives about 25 million requests per day from more than 1 million unique clients.
Taking advantage of CoralCDN is simple. Just append .nyud.net to the hostname of any URL, and your request for that URL is handled by Coral! Or you can also enter your URL in the address bar in the middle of CoralCDN’s page and click “Go” button to achieve the same effect. But as it does not support Cookies, you cannot access https sites.