List of Best Proxy Sites offering continually updated HTTP and Socks Proxies for free:
Socks 4/5
http://socks24.org
http://proxy-heaven.blogspot.com
http://golden-socks.blogspot.com
http://live-socks.net
http://vip-socks.net
http://socks5list.com
http://socksproxy-list.blogspot.com
http://us-socks.blogspot.com
HTTP Proxies
http://proxies24.blogspot.com
http://proxy-server-free.blogspot.com
http://seoproxies.blogspot.com
http://newfresh-proxies.blogspot.com
http://free-proxyserverlist.blogspot.com
http://new-daily-proxies.blogspot.com
http://google-proxies.blogspot.com
http://proxycollections.blogspot.com
http://proxyhell.blogspot.com
http://proxyserver-list.blogspot.com
IRC / SSL Proxies
http://irc-proxies.blogspot.com
http://free-ssl-proxy.blogspot.com