I just wanted a list of usability resources so thought I'd put the ones I knew about into a wiki & encourage others to expand it.
Drupal.org
Design Books
- The Design of Everyday Things by Donald Norman
- Don't Make Me Think: A Common Sense Approach to Web Usability by Steve Krug
- The Humane Interface: New Directions for Designing Interactive Systems by Jef Raskin
- About Face 3: The Essentials of Interaction Design - by Cooper, Reimann, Cronin
Design Patterns & Galleries
- Elements of Design: an alternative web design showcase
- http://ui-patterns.com/
- Patterns in Interaction Design
General Usability Links
Usability & Free Software
- Why Free Software has poor usability, and how to improve it
- Usability and Open Source Software
- The Usability of Open Source Software
- Why Free Software usability tends to suck
Books
Associations
Usability Association & Approaches to user centered design:
Drupal Usability Blogs
- @Yoroy's blog - http://www.yoroy.com/
- @Bojhan's blog - http://www.bojhan.nl/
- http://www.d7ux.org/