JForum is complete, powerful, database-independent, and multi-threaded forum software. Features include unlimited forums and categories, topic watching, email notification, private messages, user ranking, an advanced permission schema, and moderation options. It provides support for many languages and customizable templates per user.
WackoWiki is a small, lightweight, handy, expandable Wiki clone. Its main advantages are a visual (WYSIWYG) editor, an easy installer, full Russian support, many localizations, email notification on changes/comments, several cache levels, design themes (skins) support, XHTML compliance, page rights (ACLs), and page comments.
Calcurse is a text-based calendar and scheduling application. It helps keep track of events, appointments, and everyday tasks. A configurable notification system reminds the user of upcoming deadlines, and the curses based interface can be customized to suit user needs. All of the commands are documented within an online help system.
The Chemical Structures project aims to provide a complete set of 3D molecular structures in CML format. As CML format permits structural data and many properties to be included, each file also contains additional information, like molecular weight, boiling point, melting point, or InChI code. Data can be explored with a CML-aware software, like Jmol, or by using a Web browser.