Screenmarker, a handy little exe that lets you draw on the computer screen. No install required. It will work on your primary monitor only, so it's useful when you're using the smart class broadcast but not the projector. You can download it here: http://www.screenmarker.com/
Some of my favorite posing tutorials by Keith Lango. Each video is about 10 min long.
Part 1, Part 2, Part 3, and Part 4
