American Nutraceutical Association

http://www.ana-jana.org

Holistic Primary Care

http://www.holisticprimarycare.net

The Institute for Functional Medicine

http://www.functionalmedicine.org

The American Academy for Anti-Aging Medicine

http://www.worldhealth.net/

American Clinical Board of Nutrition

http://www.acbn.org/

American College for Advancement in Medicine

http://www.acam.org/

American Journal of Clinical Nutrition

http://www.ajcn.org/

American Medical Association Journal Search

http://pubs.ama-assn.org/search.dtl?
action=FormGen&Template=search.hts

American Osteopathic Association

http://www.osteopathic.org/ 

(for patients and consumers)

http://www.do-online.org/ 

(for health industry professionals)

American Society for Nutrition

http://www.nutrition.org/

Bastyr University

http://www.bastyr.edu/

Holistic Primary Care

http://www.holisticprimarycare.net

The Institute for Functional Medicine

http://www.functionalmedicine.org/

Medline Search from PubMed

http://www.ncbi.nlm.nih.gov/entrez/
query.fcgi?db=PubMed

National Center for Complementary
and Alternative Medicine (NIH)

http://nccam.nih.gov/