The Lam Association:
This site has an up to date list of qualified association teachers.
LamAssociation.org

The website of Tony's teacher, Master Lam Kam Chuen:
LamKamChuen.com

A full history of Da Cheng Chuan
da-cheng-chuan.org

Tai Chi Resources:
Master Lam has written a number of books, which can be found here.
lamassociation.org/books

Information on Parkinson's Disease
parkinsons.org.uk