Squid Proxy - Website Content Acceleration and Distribution. Thousands of web-sites around the Internet use Squid to drastically increase their content delivery. Squid can reduce your server load and improve delivery speeds to clients.
WebPurify - Profanity Filter, Image Moderation and Video Moderation Services Made Easy.
CCProxy - Want to share Internet connection? Get every computer online through a single Internet connection?
Smart Moderation - Stop Inappropriate Comments using Artificial Intelligence
3proxy - 3proxy freeware proxy server for Windows and Unix. HTTP, SOCKS, FTP, POP3
Block Together - A useful tool which helps you block trolls on Twitter.