dnfBB
dnfBB is a 3-Tier, fast and lightweight .Net-powered discussion board written in C#. With native support for multiple forums

Communications::BBS

c2cshop
cshop is C2C auction software package, can help you build your own auction web-site like eBay quickly. The import feature

Communications::BBS
Communications::Chat
Office/Business::Financial::Point-Of-Sale

Bananeweizen`s extensions and add-on`s

Communications::BBS
Communications::File Sharing
Internet::WWW/HTTP::Browsers
Text Editors::Integrated Development Environments (IDE)

WOW Next Door
A social collaboration platform for World of Warcraft similar to Friendster and LinkedIn

Communications::BBS
Games/Entertainment::Role-Playing
Internet::WWW/HTTP::Dynamic Content::Message Boards

phpBB: Hybrid Edition
A prebuilt version of phpBB with Customizations, Modifications and Enhancements preinstalled

Communications::BBS

phpBB Email Digests
Email Digests is a MODification for the very popular forum software, phpBB. Email Digests intent is to provide emails to

Communications::BBS
Communications::Email

PhpBB SoftPortal
A dynamic portal add-on for the famous phpBB system. Scripted in PHP and will support same databases as phpBB. Add blocks

Communications::BBS

Comitium
Lightweight, modular PHP forum software using PEAR::DB to support a variety of databases

Communications::BBS
Communications::Conferencing
Internet::WWW/HTTP::Dynamic Content::Message Boards

WebShadow - The Web`s Forum Software

Communications::BBS

Epsilon
Epsilon is a free extend-able community management system. Right now the software includes a powerful web log software

Communications::BBS
Internet::WWW/HTTP::Site Management