This Free proxy will unblock some popular sites including Facebook, Youtube and MySpace.
The IP address changes every day.
Today's address, June 10th, is: 174.129.77.81
Configure the proxy setting in your browser to this address and port 80 to use this.
The daily address update is available at these sites every morning:
http://www.ippredator.com
http://www.wildtunnel.com
http://www.unspyable.com
http://www.hackmenot.com
http://www.personalvpn.biz
http://www.countersurf.com
This paid service gets past even the most restrictive blockers that block proxies. It will work where proxies fail.
http://www.surfbouncer.com/stealth_ssl_vpn.htm