Here are some Extension recommended resources about food preservation:

Freezing

• Freezing Fruits and Vegetables
• Freezer Storage Chart
• How do I….Freeze Foods (National Center for Home Food Preservation, NCHFP)

Canning

• Canning Meat, Wild Game, Poultry and Fish Safely
• Canning Salsa Safely
• Canning Vegetables Safely 
• Care and Use of a Pressure Canner 
• How do I…. Can Foods 
• Recommended Canners
• USDA Complete Guide to Home Canning

Drying

• How do I…. Dry Foods 
• Making Safe Jerky in a Home Dehydrator
• Smoking & Curing

Pickling and Fermenting

• Homemade Pickles and Relishes 
• Make your Own Sauerkraut 
• Homemade Yogurt
• How do I….Pickle Foods 
• Making Table Wine at Home
• Making Homemade Cheese

Making Jam & Jelly

• Making Low Sugar Jam with Clear Jel
• How do I….Make Jam & Jelly 

Other Resources

• National Center for Home Food Preservation
• So Easy to Preserve