Here are some links that may help you look for the particular information you need.

National Pork Producers Council http://www.nppc.org

National Pork Board  http://www.pork.org

Agriculture Marketing Service http://www.usda.gov/ams/division.htm

Agriculture Information Sites http://www.agric.gov.ab.ca

American Meat Institute http://www.meatami.org

Chicago Mercantile Exchange http://www.cme.com

National Agri-Marketing Association http://www.nama.org

Agriculture Weather Information Service http://www.awis.com

National Hog Farmer http://www.NationalHogFarmer.com