Yes, home study certification courses are not a new concept. Written distance learning Yoga courses have been around for years. Yoga teacher training online (with technical Email and telephone support) is a new method of tutoring. When you add Yogic methodology and meditation videos to the audio CD’s on the chakras, you have a powerful combination.
We still use many written materials, because they are so valuable, but videos, web clips, and CD’s make learning how to become a certified instructor much easier than it used to be. Many reputable universities have correspondence courses and “night school” classes. Graduates of those same programs are always very successful “self-starters” in life. Based on the number of calls we receive from spas, health clubs, ashrams, etc., there are a large number of employers eager to hire graduates of this correspondence teacher training course.