U.C. Berkeley Wellness Letter.com
http://www.wellnessletter.com/html/ds/dsSupplements.php
The Linus Pauling Institute
http://lpi.oregonstate.edu/
Food and Nutrition Information Center National Agricultural Library
http://fnic.nal.usda.gov/nal_display/index.php?info_center=4&tax_level=1
The Dietary Supplement Information Bureau
http://www.supplementinfo.org/
Supplement Quality.com Links
http://www.supplementquality.com/links/tradeorgs.html
The American Association of Naturopathic Physicians
http://www.naturopathic.org
NIH Library and Literature Resources National Institutes of Health (NIH)
http://www.nih.gov/science/library.html
National Library of Medicine
http://www.nlm.nih.gov
CAM (Complementary and Alternative Medicine) on PubMed
http://www.nlm.nih.gov/nccam/camonpubmed.html
International Bibliographic Information on Dietary Supplements (IBIDS) Database
http://ods.od.nih.gov/Health_Information/IBIDS.aspx
National Center for Complementary and Alternative Medicine (NCCAM), National Institutes of Health
http://nccam.nih.gov
Center for Food Safety and Applied Nutrition, U.S. FDA
http://www.cfsan.fda.gov/list.html
Clinical Trials (NIH)
http://clinicaltrials.gov
The American Botanical Council
http://www.herbalgram.org
The Council for Responsible Nutrition (CRN)
http://www.crnusa.org
The National Nutritional Foods Association
http://www.naturalproductsassoc.org/
Thio Gel
http://www.thiogel.com