Thanks to Dale Seago for the suggestion. Dale suggest that the following to essay/articles be posted as a sticky. The first one is The Importance of Paper explaining why the little bits of paper (scrolls, densho) that link us to our art(s) are so important and the second one is the History of the Koga Ninja . This one gives us a brief history of the "Koga" ninja and when, where and why their lineage stopped. Here's the thing, we constantly get people claiming to have been taught various unknown or thought to be dead schools of Ninjutsu. Proof of the continued existence of these schools would be welcomed by all serious practitioners of Ninjutsu. Those that say they have no proof or "can't give it" should especially read the first essay and realize why we place such emphasis on records. You have proof? Please, let us see it. Anyone wanting to discuss these articles, please create a new thread with your specific question or comment.