Comment Use Save My Whiteboard and your Camera (Score 1) 823
I am a professor of engineering, and the way I solved this problem for my students was to write software that allows me to process photos of the whiteboard very quickly (a minute or two per day). It automatically puts them on the web for the students. They can browse them at: http://people.wallawalla.edu/~Rob.Frohne/ClassNotes/ and they can print a pdf document of them as well from the web site. Lately I've included an MP3 recording of the lecture as well, so that they can hear it again as necessary. The processing software is called Save My Whiteboard and is available under GPL3 here: http://people.wallawalla.edu/~rob.frohne/SaveMyWhiteboard/index.html
The php code for the web pages is available under GPL too if anyone really wants it.
Rob