"Although connective tissue is found in every bone, muscle, and organ, it's most concentrated at the joints. In fact, if you don't use your full range of joint flexibility, the connective tissue will slowly shorten to the minimum length needed to accommodate your activities. If you try to flex your knees or arch your back after years of underuse, you'll discover that your joints have been "shrink-wrapped" by shortened connective tissue. " - another interesting thought

+ Collection of recovered texts on Western martial arts, as it were, in ye olden days

+ and just to show that I don't let my opinions of Brazilian jujitsu override my appreciation for it, a nice survey of techniques