Below is a list of external sites I think you will find useful, though I am not affiliated and/or responsible for their content.
- Shri K Pattahbi Jois Ashtanga Yoga Institute in Mysore, India
- Peter Sanson, New Zealand
- Yogamoves, Eileen Hall, Sydney
- Michael Hamilton, Switzerland
- Kirsten Berg and Mitchell Gold, Thailand, Bali and US