Version: 1.09 Released: 8/26/2006 Free Platform: PHP + MySQL
Features optimized code structure and database, feature enabling/disabling, GZIP code to set up optimal compression level, configurable spam and email bots protection, email address hiding, admin restricting, several banning options, control panel logs, a backup system, skinning, private messaging and more. - More Info....

Version: 2.3 $149.99 - $299.99 Platform: PHP 4.3+, MySQL 4.0+
An effecient and feature rich forum system with a suite of moderation and admin tools. Support plans and installation service available. - More Info....

Version: 1.0 Updated: Sept. 8, 2006 Free Platform: PHP 4.3+ , MySQL 4.1+
Free, open source, User-friendly and fully customizable bulletin board script. Create your virtual community with this forum software. - More Info....

Version: 2.0.22 Released: 12/23/2006 Free Platform: PHP3, MySQL
A highly customizable forums package with a user-friendly interface, simple and straight-forward administration panel, and helpful FAQ. - More Info....

Version 1.1.3 Released: 6/24/2007 Free Platform: PHP + MySQL
Simple Machines Forum — SMF in short — is a free, professional grade software package that allows you to set up your own online community within minutes. - More Info....

Version: 3.6.8 Released: 7/26/2007 $160.00 Platform: PHP + MySQL
vBulletin is a professional, affordable community forum solution. Thousands of clients, including many industry leading blue chip companies, have chosen vBulletin - It's the ideal choice for any size of community. - More Info....

Version: 4.1.18 Released: 12/23/2007 $99 Requirements: PHP 4.3+, MySQL
Get updates in one click. Add unlimited fields. Toplists allow showing any data anywhere. Includes instant messaging, guestbooks, chat room, blog submissions, URL rewriting, shoutbox, quotes system and many more unique options. - More Info....