I typically find myself nodding in agreement when reading Jakob Nielsen's alertbox. Of course, others may have a different response! Here are his top ten web design mistakes of 2003.
Sites are getting better at using minimalist design, maintaining archives, and offering comprehensive services. However, these advances entail their own usability problems, as several prominent mistakes from 2003 show. [Top Ten Web Design Mistakes of 2003 (Jakob Nielsen's Alertbox)]