The Skeptic's Dictionary is an invaluable source of information. Here are the essays it lists for....
The Energy Fields of Life by Victor J. Stenger
Quantum Quackery by Victor J. Stenger
Why Bogus Therapies Often Seem to Work by Barry L. Beyerstein
Why Health Professionals Become Quacks by William T. Jarvis, Ph.D.
Alternative Medicine and the Laws of Physics by Robert L. Park
Can Any Cancer Treatment Strengthen the Immune System? by Saul Green, Ph.D.
Can Alternative Treatments Induce Immune Surveillance Over Cancer in Humans? by Saul Green, Ph.D.