The visual podcasts have all the diagrams and equations, notes and concepts from my Keynote presentation. It is in the artwork track of the .m4a file, just like a very complicated album cover. You have to hit the GET button to download the artwork, though.
I split up today's visual podcast into two pieces.
The doc cam PDF is in Webcourses now, in the doc cam folder, Saturn icon. The diagrams from the doc cam come in at about 6:40 on the second podcast of today.