Using Screenr for class demonstrations

I teach database marketing and marketing technology in the spring and plan to use http://screenr.com to create simple demonstrations of how to use statistical procedures and aspects of google adwords. I think this will help the students learn the material as they can easily look up the keystrokes after class. Here is a sample of my first effort. I am NIUIMPROF on screenr and a youtube channel is next!

http://screenr.com/4jfs