The Physicians Committee for Responsible Medicine (PCRM)
PCRM is an organization supported by nearly 5,000 physicians who advocate an animal-free lifestyle as the healthiest and most humane way to live. This website is a great resource for anyone who is looking for vegan/vegetarian health information, and for medical students, educators, and nutritionists. PCRM distributes Vegetarian Starter Kits.
The vegan diet is a strict vegetarian diet which consists of completely eliminating animal ingredients from your everyday diet. This includes milk, honey, gelatin, etc. A vegan lifestyle is one in which an individual chooses not only to adopt a vegan diet, but to also eliminate the usage of animal products (leather, wool, etc). Vegan Outreach puts out "Why Vegan?" pamphlets, which detail why a vegan diet is favorable from a animal advocacy, environmental, and health standpoint. You can also read the "Why Vegan?" pamphlet online.
Learn about how eating meat contributes to environmental destruction.
This is People for the Ethical Treatment of Animals' website for college activists working to create dissection choice policies on campus.
Medical Research Modernization Committee
"The MRMC is a national health advocacy group composed of physicians, scientists and other health care professionals who evaluate the benefits, risks and costs of medical research methods and technologies." This site features articles on the shortcomings of Aids-related animal experimentation, critiques of xenotransplantation & maternal deprivation experiments, offers non-animal methodologies for conducting experiments, etc..