Anonymous
http://www.proxyworld.org/forums/viewforum.php?f=2|viewtopic.php|0
Transparent
http://www.proxyworld.org/forums/viewforum.php?f=3|viewtopic.php|0
SSL
http://www.proxyworld.org/forums/viewforum.php?f=16|viewtopic.php|0
Socks
http://www.proxyworld.org/forums/viewforum.php?f=5|viewtopic.php|0