In-Portal
In-Portal is a popular Open Source Content Management System (CMS) for Web 2.0 Websites that is free for personal and commercial use.
b2evolution
b2evolution is a powerful blog tool you can install on your own website. It includes all the features of traditional blog tool ...
Composr
"With Composr, we are committed to using our experience and talents to keep the web open, to empower teams to build sophistica ...
Tiki Wiki CMS Groupware
Tiki Wiki CMS Groupware is a full-featured, web-based, multilingual (40+ languages), tightly integrated, all-in-one Wiki+CMS+G ...