If you want a really good site to learn Debian administration, you really need to check out Debian Administration. It's an outstanding site, and today, they even have an article that's near and dear to my heart. Check out this story on Installing and optimising the Drupal CMS on Debian Etch. It's more of an overview, as opposed to a step-by-step, but this is frequently what is needed in step-by-step tutorials. If you're like me, you frequently need someone to point out some of the big picture parameters of an installation. I realize most tutorials are aimed at getting you up and running, but having the big picture, as this one does, is frequently more important.

Free Software Magazine and several other prominent sites also use Drupal. While I still have a few things to learn yet, I am thus far enjoying tinkering with Drupal.