Squid Web Proxy Cache:Official site. FAQs, configuration guide, support documentation and downloads. [Unix, Linux]
Squid: A User's Guide:Oscar Pearson's guide to installing, configuring and running a Squid implementation.
Ad Zapping With Squid: A redirector for squid that intercepts advertising (banners, popup windows, flash animations, etc.), page counters and some web bugs (as found).
Devshed.com: Article on tuning Squid on Linux for maximum performance and stability.
RU/2: Squid 2 for OS/2: Maintenance page for OS/2 version of Squid.
Squid for Windows: Version of Squid written for Windows operating systems. Free download.
Squid-cache.org: Hypermail Archive: All squid mailing list entries from current day back to May 1996.
Squid: The Definitive Guide: Advertising site for a book on Squid, written by Duane Wessels. Offers chapter summaries, reviews and purchase locations.
squidGuard: A fast redirector, and access control filter for Squid. Also provides a large collection of blacklists for blocking of objectionable sites, and a robot for generating them.
Squirm: A flexible regex based redirector for Squid.
Transparent proxying with squid and pf: Instructions on how to use OpenBSD packet filter (pf) to redirect http connections to a squid cache transparently without any client configuration. [OpenBSD]
