I came across this great list of usability rules in a presentation by Denise Stephen called “Enabled by Design meets Scripting Enabled” which was given as part of the Scripting Enabled event organized by Christian Heilmann. Here goes the list:
Usability - The golden rules
<li>Simply presented information</li> <li>Content reduced to essentials</li> <li>Manageable logical structure</li> <li>Intuitive usability</li> <li>Uniform appearance, consistently designed</li> <li>Good design and appealing graphics</li> <li>Quick delivery of information</li>
There are some great slides at ScriptingEnabled which are up on Slideshare - like this one Why I hate the Interweb (a presentation on the challenges that face different kinds of disabled users online). View more on Scripting Enabled website.