American Heart Association: Vegetarian Diets - Explains the benefits and risks of a meatless diet. Also, describes ways to include needed nutrients.
Ask the Dietitian - Ask Joanne Larsen, Registered Dietitian and nutrition counselor, about transition - it's more than eating fruits and vegetables.
HCF Nutrition Foundation - Focus on soy. Contains information on diets, disease prevention and food nutrients.
Healthy Vegetarian - Provides information on non-animal sources for vitamins, minerals, and nutrients needed for health. Describes different dietary options and provides related links.
Vegetarian Nutrition Dietetic Practice Group - An invaluable resource to those who want access to concise, reliable, cutting edge resources and information on plant-based diets.
Vegetarian Nutrition Resource List for Consumers - USDA site with contact information for cookbooks, magazines and web sites.