Videos Show Concepts Better

It's amazing how a <good> video can explain a complex concept much better than a text or oral description. For example, try to explain the nature of non-linear digital hyper text. Now show someone what it means with this video. Or, try explaining RSS, then watch this video. Of course, there are also loads of terribly boring videos. Creating a good video takes a lot of work. Do you have other videos that show or demonstrate hard to explain concepts? Videos as a publication medium for student work is certainly a powerful concept, but how many classroom teachers are willing to give the time to this type of project? It's a leap into the unknown if you haven't done it before.