FluxBB is a fast, light, user-friendly forum application for Web sites. It was originally based on PunBB and supports UTF-8, XHTML, and internationalization, and leaves out some of the less than essential features of other forums without sacrificing essential functionality or usability.
Gnew is a simple content management system. It is fully customizable using a template system, and supports multiple languages. It features easy installation, a simple but complete administration section, multi-level categories, article management, news management with an advanced comments system, poll management, user management, a forum, search engine, RSS feed generation, BBCode and HTML support, emoticons, and more.