I like this video, even though it doesn't explain how to do everything. It shows few things that I'm working with my group on: Using a stone blade, natural cordage and, of course, bow drills. Does anyone have a bow drill video they prefer?
Here are those videos. The first is just a good, solid run-through without a lot of the wasted words and inefficient explanation you get in a lot of other videos. The second, from Doug Hill, an acquaintance here locally who I think does know his stuff, gets into details not often covered, so could help iron out problems a person might be having learning the bow drill: