American Livestock Breeds Conservancy
British Pig Association
Rare Breeds Canada
Canadian Swine Breeders' Association
Large Black Pig Breeders Club
New Zealand Rare Breeds Large Black Pig Rescue Project
Rare Breeds Trust of Australia
Local Harvest
Slow Food USA
Humane Farm Animal Care
Rodale Institute
Kay Wolfe's Questions and Answers
Oklahoma State University Large Black Hog
Large Black Pig Bloodlines (UK)
American Livestock Breeds Conservancy--Pigs (Traditionally Raised)
ATTRA's Considerations in Organic Hog Production
Cornell University Small Farms Program--Raising Pastured Pigs
Food and Agriculture Organization of the United Nations, A Manual for the Primary Animal Health Care Worker, Chapter 4: The Pig ( Do NOT use their ear tag system )
Pasture Based Swine Management Arkansas State University
Pork Industry Institute Texas Tech University
Profitable Pork: Strategies for Hog Producers
Heritage Hog Blog
The Pig Site Disease Identification Guide
The Pig Site Disease Problem Solver
Pig Diseases - Symptoms, Causes, Treatments
Castrating Piglets
How To Castrate A Piglet with photos
Food and Agricultural Policy Research Institute
The Pig Site
USDA Swine Market Reports
Productive Swine Husbandry, Lippincott's Farm Manuals,1913, From Cornell University's Virtual Library
Handy Farm Devices and How To Make Them
GMaps Planimeter - easy way to measure acreage
A useful tool to measure acreage with GPS coordinates