Drupal.org - Official Website Here is where you can download Drupal core, modules, themes, and all updates. Lynda.com
- There is a section on this site called Drupal Essential Training covers the basics. Everything from installation to launch. It is a great starting point.
Acquia.com - The Community section of the site has video tutorials on ImageCache, Blocks, CCK, and more. The topics here are more advanced, but you have to learn that over time. Some of these videos may require different assessments.
GotDrupal.com - Video tutorials on workflows, permissions, Google Analytics module, and more.
Lullabot.com - These are the experts. His video tutorials (CCK Learning and learning approaches) really help explain two of the most important Drupal modules. They also have a video that provides a good overview Set called Drupal Drupal Agreement.
DrupalSN.com - A community site of Nice, where Drupal enthusiasts exchanging ideas and help each other.
LevelTenDesign.com - try to share our vision of what we learn. We have articles on basic topics such as the removal of names from the fields of content types, creating RSS feeds of opinion, the top Drupal modules SEO, and more advanced users, Drupal 6 skeletons node.
No doubt the most economical resources to progress quickly
