KPSU is on Drupal.
Ben Kaplan presenting, also on Drupal.

What Drupal Is... And What it is Not

Drupal is a time machine. Gives you smart default behavior incredibly quickly.

Drupal is not fast food. Still takes work to customize.

Drupal is a human pyramid. Huge help from other developers.

Drupal is not a piggy back ride. Volunteers, not slaves.

Drupal is a Swiss Army Knife. Can be used to do just about anything. It is as much a framework as a CMS.

Drupal is not a potato peeler. Not the perfect tool for certain very specific jobs. 90/10 rule. Final bit of customization can be expensive.

Drupal is yoga. Very flexible.

Drupal is not an all you can eat buffet. Should only load the modules that really move you forward. Exercise restraint.

Drupal is a pair of binoculars. Always looking forward.

Drupal is not a rearview mirror. There is always an upgrade path, but there is no guarantee of backwards compatibility.