These are things I stumble across on the Internet, so enjoy browsing:
BBC on the human body and mind, filled with tests, and nice animations.
Brain-types deals with similar ideas like Myers Briggs tests. Categorisation based on the answering of a couple of questions. Interesting.
Life-organiser is a site dedicated to helping you organise your life (Nomen est omen!). Here the section on mind, body and spirit. Some nice ideas, and fun to browse.