I looked at both youtube and teachertube for youtubes on topics I teach. I think the appropriate use of youtube for teaching purposes would be great except that many of them are very short compared to the dvds and videos I have ordered that go with the units I teach. However, the youtubes could be a good introduction or a good review for some of the topics I teach. The teachertube, on the other hand, tried my patience waiting for some of them to start. They were also a little disappointing because some of them were lectures by other teachers that showed power points. This I wouldn’t want to use. I think I would rather use youtube because it seems faster and more efficient. However, I need to spend more time exploring teachertube. Here is a good example of a youtube about Constantine.