Iyengar Yoga Links:
The B.K.S Iyengar Official website: http://bksiyengar.com/
The Iyengar Yoga National Association of the United States: http://iynaus.org
Scientific Research on the Therapeutic Benefits of Iyengar Yoga: http://iynaus.org/research/research
Lots of Iyengar Articles from the IYASCUS: http://iyascus.org/Links.aspx