Usability & User Experience Community
From the webpage:
This web site is a forum to share information and experiences on issues related to the usability and user-centered design. It is the home of the Usability and User Experience Community of the Society for Technical Communication.
Home of the Heuristic Evaluation – A System Checklist resource.
An abundance of usability resources, particularly under “New to Usability?”
Every hour you spend at this site may save users days of unproductive annoyance with your products.