National Institutes of Health "Acupuncture: An Introduction"
World Health Organization "Diseases & Disorders That Can Be Treated With Acupuncture" (see page 29 in report ) (PDF)
Andrew Weil, M.D. provides an overview of acupuncture
Mayo Clinic Article - "Acupuncture for Fibromyalgia"
Acupuncture for PMS Relief (Video)
A good book on Chinese Medicine for those who want to understand it better is The Web That Has No Weaver by Ted Kaptchuk, O.M.D. (Amazon.com)