Health Watch UK http://www.healthwatch-uk.org/
Discussion on assessment and testing of treatments and information for the public why only thoroughly tested treatments are safe. Non-profit organization in the UK.
HomeoWatch http://www.homeowatch.org/
A skeptical guide to homeopathy. Homeopathic "remedies" are usually harmless, but their associated misbeliefs are not.
My Cancer Facts http://www.mycancerfacts.org/
Discussion of Alternative, Complementary, and Conventional treatments for cancer written by cancer patients. Also discusses the Cancer Conspiracy, and provides links to other resources.