YAPAB is an address entry collection system. It has many features including user accounts with adjustable permissions, multi-language support, IM between users, import/export functions for common file formats, group actions to collect entries in reachable places, and the ability be used under any browser and operating system.
Lame Node System is a Web-based idea repository. It is aimed at people wishing to set up a personal site without the hassles of detailed Web page maintenance. It supports user accounts, flexible HTML theming, and several types of "nodes" (HTML input, files/external links, and pictures).
PHPNews is powerful news publishing software. Features include, multiple users with 3 different types of access, archives, multi-language support, categories, comments, the ability to send articles to a friend, short and full bodied news, avatars, smilies, censor list, IP Banning, fully customisable templates, valid XHTML 1.0 Strict, valid CSS, and more.