I started this thread, and looked closely at online and mail order certifications.........
In my opinion - if you feel their course is value for money, looks informative, and well structured;then consider it, especially if no Yoga teachers or schools near you.
But DO NOT do it thinking you will become a teacher after it or it is all you will need to become a teacher. The certficates certifying you as an Instructor or completing such a program are worthless; in fact in many places that look for e.g. Yoga Alliance 200hr certification as a minimum they won't allow you to teach!
Regarding places like Aura Wellness Center (see link in first post on this thread), if you choose any of their packages - do the maths, go to Amazon, etc check out prices you can get most of those materials for and see if value for money or not.
When you look at testimonials on Aura Wellness Center (there are hundreds!) many people are very happy with the courses & many have gone on to become teachers - here is random example : -
[I]On Profile there (http://www.kiranshashiyoga.co.uk/profile) : Kiran is a certified yoga teacher, Reiki Master, Nutritionist and massage therapist, first learning the art in India with family and certifying with a Diploma at The State Council of Education Research & Training in Delhi. She has also the following qualifications:
? High Honours Yoga Teachers Diploma studying with the Aura Wellness Centre.
? The highest grade Diploma in Nutrition and Advanced Nutrition studying at the School of Natural Health Science
? Diploma in Holistic massage[/I]
The High Honours Teachers Diploma from Aura Wellness Center may have been in person, it does not specify. The Center does on site live training also at HQ in U.S. If not then it was through online/mail order certification. The School of Natural Health Science appears to be another mail order / online certification place (there may be others with same name that do live on site training). Diploma in India must have been live in person training, don't know any more about it.
N.B. This may well be an excellent and knowledgable teacher (site shows several classes in different locations and photos with students) but the qualifications, I think some might wonder if they are as recognised as Yoga Alliance 200hr certification (doing live Teachers Training with teachers) etc.
Agree with what David says above, well almost - some offering these courses might be very sincere in trying to offer education programs in Yoga especially for those with no access to teachers in their locality or for another reason cannot attend classes, of course they are making money from it as any teacher is. Others are as David said out to make a fast buck from gullible people or people who want to become Yoga Instructors overnight. It would be better if they said or stated clearly on any certificates this is online/homestudy course and that the bearer should undertake live training also for minimum no. of hours.