Computer-Mediated Communication Magazine has a nice Article on the usabilty of web sites.
\"This article contemplates factors affecting the usabilty of web sites. It addresses issues from both the disciplines of psychology and computing and attempts to consider the relevance of these issues with regards to a study carried out at the Centre for Information Environments Research at Brunel University. The study was developed in order to investigate issues affecting the usability of web sites. A test site was created and investigations revealed some interesting findings, some of which are detailed in the article.