Here are some resources that I’ve found really helpful. You might also want to check out my blogroll on the right side.

General tips

The best user manuals

Making user interfaces that prevent errors

Product reviews

Usability Institute: Reviews

Design patterns (aka “how did someone make this work before”)

Usability Institute: Design patterns

Thousands of designs from around the web

Yahoo Design Patterns

Jennifer Tidwell’s Designing Interfaces


Don’t Make Me Think

Designing the Obvious