- A customizable forum package, with a large feature set including i18n support.
- Add-on software to the phpBB forum system which combines the functionality of a mailing list system and a phpBB forum in order to add bi-directional communication. Latest release is 1.2.6, 2007-03-09.
Phorum - PHP Message Board
- A fast and flexible Web-based discussion software designed to meet different needs -- from small to large discussion boards. Latest stable release is 5.2.12a, 2009-07-22.
Project Beehive Forum
- PHP/MySQL discussion forum software with many user-friendly features for easy setup and use.
- A basic, fast, and lightweight discussion board without all the graphical bells and whistles. Multilingual support in a wide variety of languages. Latest release is 1.2.20, 2008-08-20.
SLASH - The Slashdot Code
- The "Slash" source code is available here; this is the code used to produce Slashdot. All the latest patches, bugfixes, documentation, and FAQs are available on this site.
- For use with the FirstClass bulletin board system with an add on for chat.