Someone recently brought up the topic of website usability to me . In terms of the business value of including website usability into the development process and even selling it as a feature to customers.

This reminded me of the video, It is a bit old (Apr. 11 2007) but still very interesting.
When you hear all of the items / issues to take into consideration when building a web application for a company like google or yahoo it is amazing they ever get completed. Even more amazing that so many of their applications work so well.