I guess that Dane's method does not only apply to teaching. It may very well be applicable to selling or marketing as well. Possibly combining it with one of Dan Kennedy's styles which is sales copy with handwritten notes. With Xournal and DemoRecorder you can do that in an animated way by showing the process of writing the notes.
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A comparison of screencasting apps for Linux (including DemoRecorder)
(first published in Linux Format Magazine, issue July 2009.)
Interview on the Linux Link Tech Show. Please select Episode 154.
DemoRecorder featured in Linux-User Magazine (in German)
BTW, the website DemoRecorder.com is hosted on Neue Medien Münnich ( all-inkl.com ) in Europe.
The US download mirror ist hosted on Host Gator .