Freshmeat page: http://freshmeat.net/projects/drupal/
Drupal is a full-featured content management/discussion engine using Apache, PHP, and MySQL developed for drop.org. Its features include discussion forums, Web-based administration, theme support, an open submission queue, content management, a modularized design, PHP sessions, user management with access control and username/profanity/hostname filters, error logging, a public diary module, an affiliate site module, backend/headline generation (RSS/RDF), and much more.
This project has the following developers:
New HTML Parser: The long-awaited libxml2 based HTML parser code is live. It needs further work but already handles most markup better than the original parser.
Keep up with the latest Advogato features by reading the Advogato status blog.
If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!