I'm investigating Joomla and Drupal, as well as the differences between the two.
Hmmm... not so good. I agree with their main point:
However, I'm not sure if I agree with the decision not to create a Joomla package. Hopefully that is not a permanent decision, and I doubt it is, because for a long time there wasn't a Wordpress package, but when it grew up, it got packaged!
Joomla definitely seems popular enough to stay alive, and if enough people are using it, Debian will most likely package it. As if there aren't a bunch of outdated, unused packages in the Debian repositories!
But back to the review of Joomla and Drupal... its interesting that all these three are coded in PHP.
After taking some serious time digging into Joomla 1.5, there is a glaring limitation:
I witnessed this first hand when trying to limit read-access to an article in Joomla and had to rely on the special access group, which equates to users given author rights and above, as well as the JX Control extension to add another group.
Thankfully, the ACL architecture of Joomla has reportedly been totally revamped in 1.6!
I haven't wrapped my brain around the ACL capabilities in Drupal, but I've heard good things.
Even these three software projects, I'm most familiar with Wordpress. However, the last version of Wordpress I used was from a couple years ago, so I need to try out the latest version. Nevertheless, based on my experience with Wordpress, it seems to me that Wordpress is much more focused on blogging than content management, so access controls are likely not a major concern.
Still, I have to try out the latest version to confirm that opinion.