Right now, as I write this, Gary Price and Chris Sherman and are giving a virtual lecture called "Web Research: What's New in 2004". It's part of the Library of Congress's "Luminary Lectures @ Your Library" series. I can't get on because their server is at capacity, but according to the web page, a recorded version of the lecture, with slides, will be available at this site:
http://www.loc.gov/rr/program/lectures/gpcs.html within the next couple of days.
Note: the live broadcast is a realplayer file, so you won't be able to see it anyway if you've lost your PDNet already.