Herbal therapies are starting to have some good evidence, but because there are so many different herbs with so many different claims, you have to take each one seperately and look for the evidence to support the claims. You also have to find brands whose manufacturing falls into line with FDA regulations, they are of course self policing. Nature Made is one of the brands that does well by this and there are a few others but I can never remember them since Nature Made is cheap and available locally. Aromatherapy also is beginning to develope some scientific background to it.
Acupuncture is beginning to have some evidence as well. It seems that the effects are better produced and longer lasting if used in conjunction with the herbals and it also depends upon the condition.
Massage is developing great evidence in its effect. While it does not directly cure anything, it reduces the amount of stress, increases bloodflow through vessal dilation and gets more oxygen to injuries.
There is plenty of evidence that Tai Chi and meditation reduce the number of illnesses contracted and produce measurable biofeedback results.
As for the sources, they are called peer reviewed journals, trade journals in nursing and coursework. If you want to learn, then do some research cause there is no way I can spoonfeed you everything. Most of the research is coming out of Europe, mainly Germany and the UK. The US has only just started looking into researching CAMs. And, by the way, they are called CAM/CATs because they are not based upon the Western Medical model, not because there is no research or because they are somehow intrinsically ineffective. Some are, it is true, more effective then others. However as a nurse, who am I to deny someone something like healing touch? I think its bunkam however it makes the patient feel better so if they want some weird waving their hands about, then that's fine with me.