Wayfinding and navigation in digital spaces
The IA Summit session on Wayfinding and navigation in digital spaces has the presentation slides posted on Rashmi's site (Rashmi was the panel moderator). The panelists were Mark Bernstein, Andrew Dillion, and Susan Campbell. (Oddly enough I was presenting the Model of Attraction at the same time in another session. The Model of Attraction provides a framework for thinking about information structure and development in a navigation metaphor environment.)
Peter has posted his notes on this panel (navigation and hypertext).