An FDA Guide to Dietary Supplements
   Article explains requirements for labeling, what constitutes a supplement, monitoring for safety, understanding manufacturers claims, fraudulent and quality products, and how to report harmful effects or illness.
   http://www.fda.gov/fdac/features/1998/598_guid.html

Linus Pauling Lectures on Vitamin C and Heart Disease
   Two-time Nobel laureate and the world's foremost vitamin C proponent. An article about the man and the vitamin.
   http://www.lbl.gov/Science-Articles/Archive/pauling-and-vitamin-c.html