Created by Wesleyan University (gone Moodle); the tutorials provide an overview of the essential Moodle knowledge. While introductory in nature, they do provide a quick reference for Moodlers. The topics are well labeled and a similar set of tutorials could go a long way in creating a nice foundation/knowledge base for your Moodle-using organization.
Watch all 15 minutes at http://moodle.blogs.wesleyan.edu/ (and then stay for the 4 minute encore for an additional Moodle-boost). And that’s not to mention the wealth of other great resources available: Blackboard/Moodle comparisons, Migration FAQs, and so much more.