You tube videos

You tube is starting to amass some good videos on Ashtanga yoga. Two I enjoyed in particular are described below.
There is a short video (with subtitles) of Sri Patthabi Jois speaking on yoga. In this he gives some insights into yoga. He talks of yoga as being an internal exercise which leads to internal cleansing. He emphasises the need to practice asana regularly, 95% practice and 5% theory. Breathing techniques are mentioned. In particular the need to keep the time of the inhalation and exhalation the same length.
This a good opportunity to see the guru speak and hear those words of wisdom direct from the mouth.
The other displays some aesthetic video clips in the outdoors of various sequences from the Ashtanga series. Worth a look.