Tiki is free, both Free Software (as in "Free Speech") and Free of
Charge (as in "Free Beer"), and for everyone! It has all the features
you need "out-of-the-box":

    * Wikis (like Wikipedia)
    * Forums (like phpBB)
    * Blogs (like WordPress)
    * Articles (like Yahoo News)
    * Image Gallery (like Flickr)
    * Map Server (like Google Maps)
    * Link Directory (like DMOZ)
    * Multilingual (like Babel Fish)
    * Bug Tracker (like Bugzilla)
    * RSS Feeds (like Digg)
    * Free Open Source software (LGPL)

This is Long Term Support version.