Mayo Clinic
Mayo Clinic: Chewing Tobacco: Not a Safe Product
At this site from the Mayo Clinic, you can read about smokeless tobacco and the dangers associated with it. This article includes information on how smokeless tobacco can cause the same problems,such as addiction, cardiovascular disease,...
National Cancer Institute at the National Institutes of Health
Smokeless Tobacco and Cancer: Questions and Answers
This website provides brief responses to several questions about smokeless tobacco and the risks associated with its use including: "What harmful chemicals are found in smokeless tobacco?," and "What about using smokeless tobacco to quit...
Centers for Disease Control and Prevention
Centers for Disease Control: Tobacco Information and Prevention Source
At this site there are some quick facts, presented in a simple chart, about the dangers of smokeless tobacco.