TikiWiki

TikiWiki is a Groupware solution CMS (Content Management System), suitable for websites and portals of contribution that can withstand a high traffic. Some of its features are: TikiWiki – wiki, forums, blogs, articles, pictures, links directory, multilingual, and rss feeds, bug tracker and more.

TikiWiki is developed primarily in PHP and JavaScript. Used in large databases, and was developed initially for only MySQL. To date, through the ADOdb database abstraction layer, Tikiwiki supports other databases. TikiWiki also works on most web servers like Apache and Microsoft’s IIS accordingly for both Linux and Windows. Should provide PHP 5 servers and one of the supported databases.

Download TikiWiki
http://info.tikiwiki.org/tiki-index.php