Diamond Bullet Design offers their experience and knowledge on website and software usability.

Information on basic web usability principles, including hints on helping search engines find your site. Web usability assessments and content development are available.

Pages collected by the University of Maryland, Masters of Software Engineering. These guidelines will assist software engineers to create effective user interfaces.

Interesting definition of Accessible Web Design. For use by "anyone, any web browsing technology and any site".

Development of new technologies in graphics, usability and visualization.

Trace Research and Development Center at the University of Wisconsin. Excellent guidelines for universal web design.

Covers every area of good site design as well as what not to do. Steers you away from hype and towards more practical, user-friendly Web design. Based in Australia.

From the Usability Matters Group at the Linköping University in Sweden. Their goal is to make computer systems more usable. The 1995 essay "Perspectives on Usability" by Jonas Löwgren is available for download in PDF format.

Illnesses make websites inefficient. The cures, by Dr. Ralph F. Wilson:Web Marketing Today, Issue 41, February 1, 1998.

This article is extracted and adapted from Designing the User Interface: Strategies for Effective Human-Computer Interaction 3rd edn., Reading, MA: Addison Wesley (forthcoming). Longman Publishers, Copyright 1998.