Using open source software to design, develop, and deploy a collaborative Web site

Found on the Drupal website:

IBM's Internet Technology Group has written a very nice series of articles on Drupal, the latest of which gives a fabulous introduction to the basics of Drupal.

This article gives you an overview of the Drupal content management system. We'll describe the common building blocks and discuss some common assumptions of the Drupal approach. It is helpful to understand core concepts and basic Drupal terminology as you go through this article and beyond.

The article starts off by explaining much of the Drupal jargon, and does so without falling back on other jargon, which is the first step for anyone wanting to understand the basic structures behind how Drupal works