American Yangjia Michuan Taijiquan Association 
A non-profit organized for the purpose of perpetuating this style as taught by Wang Yen-nien. Links to schools and instructors, movies, and seminars.
http://aymta.orgDong Family International Tai Chi Chuan Association 
Seminar schedules, local class links, and events.
http://www.dongtaichi.com/
International Taoist Tai Chi Society 
Locations, contacts, and events.
http://taoist.org/
International Federation of Wu Style Tai Chi Chuan 
Brief history of the form, course of study, Wu Family album, clubs links, and seminar schedule.
http://www.wustyle.com/
Tai Chi Union of Great Britain 
Supporting and promoting all Tai Chi styles in the British Isles. Includes information on finding a teacher, articles from the Union's magazine and a directory of affiliated instructors and links.
http://www.taichiunion.com/
The Patience T'ai Chi Association 
Cheng Man-Ch'ing style headquarters in New York, New York. About the style and form, push hands, applications, essays, and instructors referral service.
http://www.patiencetaichi.com/
Practical Tai Chi Chuan International 
Introduction to the art, with extensive text on history and principles. Also includes list of instructors and newsletters.
http://www.taichichuan.co.uk/
Guang Ping Yang Tai Chi Association 
Mission is to promote and preserve the quality of the style. History, news, reading list, convention photos, and links to affiliated schools.
http://www.guangpingyang.org/
Taiji Germany 
Yang style schools, lineage diagram, theory, posture illustrations, and learn online. In German and English.
http://www.taiji.de/
Zhong Ding Association 
Organization founded by Nigel Sutton based in the UK which primarily concentrates on Cheng Man Ch'ing style. Events, newsletter, photo gallery, and list of affiliated schools.
http://www.zhong-ding.com
Tai Chi Association of Australia 
Supports all Tai Chi styles in Australia. Includes articles for practitioners, a discussion forum and a directory of classes by member groups.
http://www.taichiaustralia.com/
European Association for Traditional Wu Tai Chi Chuan 
Contains links to schools in the United Kingdom.
http://www.geocities.com/wutaichi_uk/
International Sun Tai Chi Association 
Features news, biographies, techniques, training tips, photo gallery, and contact information.
http://www.suntaichi.com/
The Northern Wu Taijiquan Research Institute 
Dedicated to the study of human health, longevity and spiritual development through the practice of traditional Northern Wu Style Taijiquan, Qigong and Chinese medicine. Includes organization details and articles.
http://www.northernwu.com/
Yin, Yang and Tai Chi Chuan. 
Meditation, Tai Chi Chuan and natural healing. [English and Spanish]
http://english.yinyangandtaichichuan.org/
Taoist Tai Chi Society of Australia 
Australian and worldwide directories of affiliated schools, health benefits, how to learn, classes and current events.
http://www.taoist.org.au/
Canadian Taijiquan Federation 
Registered non-profit corporation founded in Toronto, Canada. Sponsors competitions, exhibitions and seminars in Push Hands, Taiji forms and Qi Gong. Tongren newsletter. Online club and school directory.
http://www.canadiantaijiquanfederation.ca/
The School of T'ai Chi Chuan 
Information on Cheng Man Ch'ing style as taught by Patrick Watson. Articles and links to affiliated groups.
http://www.taichichuan.nl
Wu Style UK Federation 
Organization for the United Kingdom. Contains links to schools, description of forms, history of style, upcoming events, and general links.
http://www.wustyleuk.com