http://www.chihealing.com.au/

My first Taijiquan, Qigong and Acupressure teacher, Master Zhang Hao's school Chi-Chinese Healing College. Locations in and around Sydney and Newcastle.

http://www.chinafrominside.com/ma/xyxy/xylhhistory.html 

Excellent and comprehensive guide to Xinyi Liuhe Quan.

www.emptyflower.net

Xingyi and other internal MA discussion board. Links to excellent videos of Bagua Zhang, XIngyi, Xinyi Liuhe Quan, Taijiquan and others.