Earlier I talked about the e-book, An Ax to Grind: A Practical Ax Manual, by Bernie Weisgerber. This is the accompanying video to the book. It is also made by the US Department of Agriculture Forest Service, and is a great source of information.
In the past week or so the video has been put up on YouTube, and has hit a number of the forums. Overall the video is about an hour long, and is well worth a look for anyone who is interested in axes.