This is a slightly revised and cleaned up version of the video that was featured on YouTube in February 2007.
I considered releasing it as an "eternal beta" in true Web 2.0 style, but decided to let it stand as is and start working on future projects. Many of my future videos will address the last 30 seconds of this video (the "rethink ..." part).
Thank you all for the helpful comments on the earlier draft. It has been a great experience to connect with so many people interested in similar issues.