PHP-Nuke
PHP-Nuke is an open source content management and portal application. PHP-Nuke forked from the Thatware application in 2000.
PHP-Nuke is an automated news system specially designed to be used in Intranets and the Internet. The Administrator has total control of his web site, registered users, and he will have in the hand a powerful assembly of tools to maintain an active and 100% interactive web site using databases.
-PHP-Nuke developer