The blog portion of the Supportus Maximus site is now being done using the Drupal content management system. I first heard about Drupal on This Week in Tech. They use Drupal for their site and I figured since they like it it must be good. Since then I've gotten into the nuts and bolts of it by reading the site at http://www.drupal.org and it seems very good.
I'm setting up some client websites using Drupal so we'll really put it to the test in the future. I'll report back as I go along.