Robin Good: If you want to learn how to shoot a video of someone explaining something in front of a whiteboard, here is a good guide.
Put together by Nick Sayers, it explains and documents all you need to know about shooting, lighting, and editing whiteboard presentations.
If you have never seen a whiteboard video presentation here a few examples: http://www.seomoz.org/blog/category/33
[Smart presentation and content production tips - JD]
Via Robin Good