General 

• Centers for Disease Control and Prevention: Home Canning and Botulism
• Clemson University Cooperative Extension
  This site offers information on canning, pickling, freezing, drying and fermenting foods. It has information on equipment, foodborne illness and other food safety information. All information is viewable in both HTML and PDF formats.
• Kansas State University Extension  - Food Preservation: Preserve it Fresh, Preserve it Safe
• National Center for Home Food Preservation (University of Georgia)
• North Carolina State University
  Fact sheets and recipes for home food preservation.
• North Dakota State University Extension Service
  This site has publications on food and nutrition topics, including  information on the safe preparation and preservation of wild game.
• Oregon State Extension Service - Extensive list of publications and resources on many topics to help preserve and store food.
• Penn State University Home Food Preservation
  A searchable database with national and Penn State publications. Links to a number of useful tools: kitchen measurement converter, elevation determination, list of suppliers of canning equipment and ingredients.
• UC Home Preservation and Storage Publications
• University of California publications discuss safe preservation and storage of a variety of fruits and vegetables as well as meat and eggs (listed alphabetically by item).
• University of Alaska Cooperative Extension Service
  A series of web-based learning modules - "Preserving Alaska's Bounty"- on home preservation of a variety of foods.  (Uses Adobe Flash player.)
• University of Georgia
  Comprehensive collection of food-preservation recipes and methods conforming to the latest USDA food preservation recommendations, including:
  • Home Preservation Publications
  • So Easy to Preserve (Book or DVD online ordering information) 
    Book and DVD include information about canning, pickling, making jellies/jams, freezing, and drying.
  • Freezing Prepared Foods (UGA Publication - PDF 554 KB)
  • Judging Home-Preserved Foods (University of Georgia) (PDF 554 KB)
• University of Maine - Food Preservation and Nutrition Webinar Resources
• University of Wisconsin-Extension - Safe & Healthy Food for Your Family Recipes, food safety topics, and food preservation
• USDA Complete Guide to Home Canning Download the most current version.
• Washington State University Extension Home Food Preservation (includes Spanish resources)