For Collaboration, Sharing, and Community.
Nice. This is a great way to give an online lecture. I am so tired of trying to type out all of my lectures. Plus, this is much more interesting than what I would have typed up.
This is CamStudio 2.0. It's free (and legal) online and not too hard to use. You can save it as an .avi, which is a file type YouTube accepts directly.