StayInvisible is a regulary updated source of information about Internet privacy, security, anonymous surfing, proxy servers (HTTP, HTTPS, SOCKS) and related tools and programs. StayInvisible provides you with a wide range of links to third-party sites where you can find free proxy server lists.
Sockschain is a program that allows to work with any Internet service through a chain of SOCKS or HTTP proxies to hide the real IP-address. SocksChain can function as a usual SOCKS-server that transmits queries through a chain of proxies. SocksChain can be used with client programs that do not support the SOCKS protocol, but work with one TCP-connection, such as TELNET, HTTP, IRC... (FTP uses 2 connections). And your IP-address will not be seen in the server's logs or mail headers.