I tried LectureScribe - a free tool to create a "whiteboard" effect Flash animation with sound. It works great with my new tablet laptop - I drew a concept while describing it. LectureScribe outputs to Flash (SWF) so that means you can easily add it to a web site or insert it into your own e-Learning course.
LectureScribe was developed by Brian C. Dean at Clemson University. Just download the file and double-click the file to get started.
Check it out: http://www.cs.clemson.edu/~bcdean/lscribe/