The Way of Yoga

I'm surprised that I don't read more in the running publications about the value of yoga. There's always quite a bit about core strength and the need to stretch and it seems to me that yoga is very much the answer to this.
I've done a bit of yoga over the years and more committedly over the last 6 months and I really can feel a difference especially in my lower back and left knee. Now the knee is still bad but without the yoga I think it would be terrible. I've also been having deep tissue massage once a week for about the last 10 weeks to try and sort my knee out. I have done everything for my knee: osteopath, physiotherapists, accupuncture, ultrasound, referral to a specialist, MRI scan... Nothing has worked. At least the deep tissue massage has had some effect and coupled with the yoga it forms a rounded therapy (my yoga teacher runs a massage therapy clinic at my gym).
It may be that yoga is a popular subject in the running press and I just haven't read the right articles, so I don't know, but I heartly recommend it; and some of the exercises are really good to do before a race - if you can find a bit of grass and you don't mind looking slightly odd! (why worry; we runners are odd, aren't we?)