Pi-Soft Consulting - Developer of SpoonProxy and ProxyFTP proxy servers solutions. [Win 95/98/Me/NT/2000]
Software for Anonymous Surfing - Advanced proxy agent operating a database with hundreds of public anonymous proxy servers from all over the world.
Adventures of an Open Proxy Server - Security whitepaper discussing proxy honeypots and observations on the types of abuse that are aided and enabled by insecure proxy servers.
Proxy Web Servers in Libraries - Presentations and surveys describing the uses of proxy servers (free and commercial) to solve library networking problems such as speed and filtering.
Application-Specific Proxy Servers as HTTP Stream Transducers - Paper from W3C discussing research on an application specific Web proxy.
Linux Firewall and Proxy Server HOWTO - White paper outlining the basics of firewall systems and giving details on setting up both, a filtering and proxy firewall on a Linux based system.
Oops! proxy server - Oops! - российский прокси-сервер
Proxy Server und Firewalls - Einführung in Proxy Server, Firewalls und Anonymität im Internet sowie ein Anonymitätstest.
Extra Systems Proxy Server - Freeware прокси-сервер для Windows.
Free Public Proxy Servers List - Regularly updated HTTP open/public proxy list
Mailgate Ltd - Features mail and proxy server, POP3 collection for SMTP only servers for small to medium sized businesses.
Firewalling and Proxy Server HOWTO - Teaches the basics of firewall systems and give you some detail on setting up both a filtering and proxy firewall on a Linux based PC, by Mark Grennan.
Computers And Junk - Offers articles for file sharing, video cards, proxy servers and security encryption.
CaRP: Caching RSS Parser - Free PHP script to integrate RSS newsfeeds into webpages. Features flexible formatting, caching for speed, and includes proxy server support.
Interactive Intelligence, Inc. - Developers of a proxy server. Site contains downloads, documentation and a forum.
Calamaris - Parses the logfiles of a wide variety of Web proxy servers and generates reports. (Perl) [Linux, Unix]
Simple Browser Proxy - A browser-based proxy server that allows some degree of anonymitiy whilst brosing the World Wide Web. (PHP)
etiveFTP - FTP client component with proxy server support. Requires runtime licensing. By etive.com. [Component, Commercial]
AspTear - Component for retrieving pages off Web servers and returns the documents as strings. Supports SSL, proxy server, and page caching. Requires runtime licensing. By AlphaSierraPapa. [Component, Commercial]
Rebex FTP.NET - Communicate with any FTP server in your.NET programs. Sync, Async and all common proxy servers supported. | 
