Hands down the best open source content management system out there is "eZ Publish".
In the past I've used Textpattern, Mambo, Joomla, Etomite, Typo3, Sharepoint, and a few others, and eZ Publish dominates them all.
It is a real *content* management system - not article management (with title, body text, etc.). You can set up different content classes with your own editable fields and customize various views for displaying the information.
What I find amazing is that the entire back-end administration is built using the same API and template language that you'd use to build the front end. The administration is really just a different "view".
It does have a steep learning curve, but I doubt you'd find anything else as flexible, robust, secure, and stable.
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To their credit, they do claim that they are an "Enterprise" system.
Perhaps somebody can testify as to whether it is ez-ier to implement than a comparable commercial CMS?
Hands down the best open source content management system out there is "eZ Publish".
In the past I've used Textpattern, Mambo, Joomla, Etomite, Typo3, Sharepoint, and a few others, and eZ Publish dominates them all.
It is a real *content* management system - not article management (with title, body text, etc.). You can set up different content classes with your own editable fields and customize various views for displaying the information.
What I find amazing is that the entire back-end administration is built using the same API and template language that you'd use to build the front end. The administration is really just a different "view".
It does have a steep learning curve, but I doubt you'd find anything else as flexible, robust, secure, and stable.
Check it out here: http://ez.no/products/ez_publish