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Drupal:
Main Site: http://drupal.org/
Wiki: a wiki about drupal wiki http://groups.drupal.org/wiki
Downloads: http://drupal.org/project
FAQ: http://drupal.org/Troubleshooting-FAQ
Documentation: http://drupal.org/handbooks
API: http://api.drupal.org/
Testbed: http://testing.drupal.org/examples
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Reference Sites (some): http://www.drupalsites.net/
http://www.theonion.com/content/index
tim berners-lee blog http://dig.csail.mit.edu.ezproxy.canberra.edu.au/breadcrumbs/blog/4
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Case studies:
Popular Science - http://drupal.org/node/233090
New York Observer - http://drupal.org/nyobserver
Fast Company - http://drupal.org/node/220591
CalArts - http://drupal.org/node/176482
Warner Brothers Records - http://drupal.org/node/162162
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Helpful Links:
drupal modules review
http://drupalmodules.com/
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http://tips.webdesign10.com/how-to-make-a-drupal-theme
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http://drupaldojo.com/files/screencasts/drupal-dojo_lesson28.mov
drupal 5.7 theming screencast
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http://www.lullabot.com/videocast/drupal_actions_and_workflow_video
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http://www.rhinocerus.net/drupal-handbook/drupal-configuration-and-customization
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