Tai Chi Combat and Health 
Discussion of the general principles of Yang style, guidelines for movement, single and double Push Hands, talk on Tai Chi Classics, and Da Lu.
http://geocities.com/mafuyee/Tai Chi Teaching 
Brief introduction to the philosophy, history and explanation of Yang-style. Includes photographs of postures.
http://www.fugazi.net/taichi
The Yang Style of Tai Chi 
Features articles on Tai Chi styles, history, philosophy, links, news, and forms.
http://www.chebucto.ns.ca/Philosophy/Taichi/
Gin Soon Tai Chi Chuan Federation 
Master Gin Soon Chu and Vincent Chu teach Yang style in Boston, Massachusetts. History of the style, essays on the martial aspects, Yang Chengfu's ten points and essay on practice, class schedule, curriculum and Federation member links.
http://www.geocities.com/rodeodrive/4687/
International Yang Style Tai Chi Chuan Association 
List of affiliated groups, description of ranking system, seminars, Seattle, Washington class schedule, discussion board and photographs.
http://www.yangfamilytaichi.com/