Ask a Food Safety Expert is a service of the Iowa State University Extension Service. It covers all kinds of questions about food safety and safe handling of food.
FoodSafety.gov is the federal government’s gateway site for food safety. It has links to many specialized topics.
More good tips from the FDA on preventing food borne illnesses
Food storage tips to prevent food borne illnesses at home
The Mayo Clinic’s page on reactive arthritis
Medline, the National Institute of Health (NIH)’s page on food safety