About Gopi Krishna:
http://en.wikipedia.org/wiki/Gopi_Krishna_(yogi)

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

Krishna, Gopi
Shambhala, 1993

KUNDALINI The Evolutionary Energy in Man (Highly Recommend)

Krishna, Gopi
Shambhala, new edition 1997

Also this great article he wrote:
http://www.ecomall.com/gopikrishna/timespace.htm