FightingDirectory.info is a great resource containing links related to Chinese martial arts, Korean martial arts, Japanese martial arts, martial arts services, aikido, karate, taekwando, muay thai, chung moo doe, tang soo do and more.
Budokwai Martial Arts Association
Information on a variety of martial arts styles, classes, events and courses. Based in the UK membership is open to all martial arts practitioners irrespective of style or grade.
http://budokwai.com
A democratic organization of students and instructors of all ranks, from all styles, seeking to improve the level of competency within the martial arts through a mutual exchange of knowledge. Includes history, ranking policy, teaching levels, curriculum,
The only approved organisation throughout the world to teach Central Power. Contains history and origins of this system as well as information on classes and membership.
The Sidekick Foundation is a nonprofit charity providing martial arts scholarships to at-risk youths, people with disabliities, the elderly and others.