d.umn.edu
A huge resource of links relating to web design, including CSS, Accessibility, Flash, Information Architecture, PHP, Usability and many more.
Rating: Not Ratedusableweb.com
1056 links about web usability, this site has not been updated since 2002 therefore a guess a fair few of these links are broken.
Rating: Not Ratedusabilitynews.com
Regular articles relating to usability and good Human Computer Interface design practices.
Rating: Not Rateduie.com
User Interface Engineering, from the other expert with the beard, Jared M. Spool.
Rating: Not Ratedok-cancel.com
Light hearted look at interface usability with comic strips and everything.
Rating: Not Rateduseit.com
Jakob Nielsen's website documenting the philosophy of website usability.
Rating: Not Rated