Wiki: TikiWiki

Tikiwiki is a full featured Free Software (GNU/LGPL) Wiki/CMS/Groupware written in PHP and maintained by an active and international community of benevolent contributors.

Tiki CMS/Groupware offers a very large number of features "out-of-the-box", arguably more than any other Open Source Web Application.

Tiki CMS/Groupware has all the classic CMS/portal features but also has some features not yet available in other CMS/portal/groupware applications. Highly configurable & modular, all the features are optional and administered via a web-based interface. 

TikiFeatures

• The Wiki
• Image Gallery
• Articles and submissions
• Blogs
• JgraphPad drawings
• Mobile Tiki & Voice Tiki
• Banner ads
• Dynamic Content System
• File Galleries
• Featured Links
• Comments
• Forums
• ChatRooms
• Communications center
• Polls
• Category system
• FAQs
• Quizzes
• RSS feeds
• HTML pages
• HTML pages dynamic
• Surveys
• Trackers
• Maps
• Newsletters
• Directory
• Ephemerides
• Shoutbox
• Search
• Games
• Live Support System
• Galaxia Workflow Engine
• Charts
• 
  

  Once you have decided what you want to do and concluded that you need a CMS, you must look and around and decide if Tiki is the right solution for you. Tiki is full-featured & versatile.