About Gopi Krishna:
Website Dedicated to him: http://gopikrishna.us/index.html
He wrote a autobiography about his own personal Kundalini Awakening. A overall amazing man.
I would like to recommend a couple great books for anyone interested in learning about Kundalini.
LIVING WITH KUNDALINI
KUNDALINI The Evolutionary Energy in Man (Highly Recommend)
Shambhala, new edition 1997
Also this great article he wrote: