The drupal galaxy of sites

Community sites
- http://www.drupal.org : main site
- http://api.drupal.org/ : reference manual
- http://groups.drupal.org/ : community groups (SIGs, LUGs)
- http://themes.drupal.org/ : theme demonstration site, à la CSS Zen Garden
- http://www.drupaltutorials.com/ : wiki for the development of the Drupal curriculum
Community IRC
- irc://irc.freenode.net/#drupal : IRC chat about Drupal development
- irc://irc.freenode.net/#drupal-support : IRC chat about Drupal support for site builders
- irc://irc.freenode.net/#drupal-themes : IRC chat about Drupal theme creation
- irc://irc.freenode.net/#drupal-courseware : IRC chat about the Drupal curriculum (by appointment only)
- irc://irc.freenode.net/#drupal-ecommerce : IRC chat about Drupal e-commerce (usually empty, use #drupal instead)
Specialized distributions
- http://www.drupaled.org/ DrupalED for Education
- http://drupalart.org/ DrupalART for Artists and Musicians
- http://civicspacelabs.org/home/developers/download CivicSpace: Drupal with CiviCRM
Important non-official sites
- http://www.drupalecommerce.com/ Demo / advocacy site
- http://www.drupalancers.com/ Marketplace for professional Drupal consulting (but see also http://drupal.org/forum/51)
Unapproved directories of drupal-based sites
OSInet Drupal-related sites:
- http://wiki.audean.com/ this wiki
- http://blog.riff.org/drupal FGM's blog section about Drupal
Major blogs
- To be listed: too many !