Website quality checklist

A while back, Carsten Cumbrowski wrote an article for Search Engine Journal entitled 50 Questions to Evaluate the Quality of Your Website.  The list of 50 is broken into categories: accessibility, navigation, design, content, security, technical issues, marketing, and legal stuff.  Reading it myself, and thinking about both this website and my library's, many ideas popped into my mind.  As the author wrote:

This 50 questions long questionnaire might trigger something here and there for some of you or maybe brings some forgotten item from the long to-do list back into your mind.