Tiki Wiki - Open Source Wiki

Tiki is a powerful all-in-one web-based application, offering collaboration, publishing, commerce, social networking, CRM and office productivity tools. Tiki is the ideal tool for you to build and maintain your Website / Wiki / Groupware / CMS / Forum / Blog / Bug Tracker / Online Office Suite or any other project you can imagine running in your browser window. Tiki is free, both Free Software (as in "Free Speech") and Free of Charge (as in "Free Beer"), and for everyone!