Does anyone know of any good Yoga groups or sites?

I am looking for good on line yoga sites groups, blogs or anything that can help me learn more about Yoga. I am looking for a group that I can correspond with, ask questions and just get a personal view or feedback.|||I have been doing the YRG Workout which is yoga based and they added in other exercise movements to build your core. What is really cool is that they have a free site where you can blog, ask questions and share your fitness story. I can%26#039;t believe it is free and they don%26#039;t try to sell you anything...what a concept. The website is www.YRGUniverse.com|||YogaMates.com