Relevant links to further info:

The Biofeedback Certification International Alliance (BCIA):

The Association for Applied Psychophysiology and Biofeedback (AAPB):

The International Society for Neurofeedback and Research (ISNR):

The Biofeedback Federation of Europe (BFE):

Free Webinar 

Bessel van der Kolk – MD : Rewiring The Brain

Rewiring Your Brain – Neurofeedback Goes Mainstream

The Peper Perspective – Ideas on illness, health and well-being from Erik Peper

National headache foundation video presentation on thermal biofeedback for headaches, pain and general wellness: