When I saw the Rutten video I felt deeply disgusted and disturbed. I've seen lots of kinds of violence in my life so I was curious as to why I had such a strong reaction. Some of his techniques weren't so different from the Tohei video that was a real joy to watch, but the contrast in attitude was the crucial thing. The spirit of martial arts as I see it, has nothing to do with ego, brutality and aggressiveness.
I was going to recommend that Aikiwebster avoid it, but I've changed my mind as I now I think it was instructional on two fronts:
1. For checking your emotional reaction to brutality.
2. For seeing the heart (or lack thereof) of antiaikido.
Oh, and know I know how to break someones knee if they insult my wife!!!!
Seriously, thanks for both links.