Ian just posted the screen casts of the Linux Kernel Walkthroughs that I ran last week.
I will be running another Linux Kernel Walkthrough for OCLUG at TheCodeFactory next week. This time the topic is "booting".
I am frantically preparing slides using (slightly modified) Rusty's svg to png presentation scripts. The svg's are naturally created in Inkscape, and the png's are useful because I can display them in a regular image viewer like gqview. I'll write more on this later.