Zorum Portal is a portal system, including news publishing or content management sofware, with a powerful built in forum based on MySQL and PHP. Its features include Web based easy installation, personalization, boxes, ratings, polls, subscriptions, style skins, moderation, and much more.
PsyPoster Message Board is a small yet robust message board made from scratch in Perl. It was designed to replace Matt's WWWBoard by giving users the look, feel, and functionality they wanted out of a message board. It has scaling support for topics, dynamic pages w/headers and footers, and is secured to prevent misuse.
FUDforum is a templatable forum with i18n support based on PHP and either MySQL, Oracle, PostgreSQL, or SQLite. It features a user/group management system, a multi-lingual spell checker, both flat and thread message views, a private messaging system with multi-user forwarding capabilities, poll file attachments, and much more. It is an extremely fast and scalable forum that can fulfil the needs of both small and large forum operators.
JSpell is a server-based spell checker that allows you to spell check any HTML input field and form. It is i18n compliant and has dialogs for multiple languages available. It can be used to add spell checking capabilities to HTML forms on your Web site. This spell checker is compatible with JSP, ASP, CGI, PHP, Cold Fusion, Oracle Forms, etc.
OPT (Outreach Project Tool) is a PHP general-purpose virtual commonplace for customers and developers to collaborate in developing projects. The system provides documents archive, e-mail archive, request tracker, task management, knowledge base, news administration, newsletter support, and a lot of other features (some project-based, some system-based).