XOOPS

XOOPS, acronym for eXtensible Object Oriented Portal System, is a CMS that runs on Apache, mySQL and PHP (+ your OS,of course..daa..)
It is a portal development tools and best of all it is open source, which means "free" hurraaah. It is supported and moven by XOOPS International and a strong community support worldwide be it Malaysia, Canada, Japan and
etc.
Try it..i found it to be most useful, easy and interesting...Plus, it is free..so no harm's done... Till then...
Au revoir,