Related software.
- The Accessibility Toolbar for IE gathers a number of public web services together with resolution, image loading, toggling css, and a nice collection of accessibility resources. Most of these functions are available to the Mozilla power user ("V" a page with mouse gestures to validate).
- WebQuilt is an academic project offering a proxy server for collecting clickstream data and visualizing the results. Somewhat limited in usage and not polished for distribution, but quite nifty if you have some Java familiarity and a very impressive presentation component.
- The NIST Web Metrics Toolkit
- Site instrumentor, visualization, card sorting, and navigation tree generation.
Teaching Usability & User Centered Design:
- EasyChart from IBM, "demonstrating poor design"

