...pay attention to what users do, not what they say.

Windows '98 is so similar to Windows '95 because Apple hasn't invented anything worth copying since 1995.

Usability rules the web. Simply stated, if the customer can't find a product, then he or she will not buy it.

Three Tips: Simplify, Simplify, Simplify.

Even better than good error messages is a careful design which prevents a problem from occurring in the first place. Either eliminate error-prone conditions or check for them and present users with a confirmation option before they commit to the action.

The usability tests we have conducted during the last year have shown an increasing reluctance among users to accept innovations in Web design. The prevailing attitude is to request designs that are similar to everything else people see on the Web.

Compared to 1999...we cannot quite declare victory, but we can declare progress.