General Information and Resources:

UC Cooperative Extension Placer & Nevada Counties
Roger Ingram
Livestock and Natural Resources Advisor
rsingram@ucdavis.edu

California Farm Bureau
http://cfbf.com/index.cfm

ATTRA - National Sustainable Agriculture Information Service
http://attra.ncat.org/ 

Cattle:

California Cattlemen's Association
http://www.calcattlemen.org/

National Cattlemen's Beef Association
http://www.beefusa.org/

Sheep:

American Sheep Industry Home
www.sheepusa.org

California Wool Growers Association
http://www.woolgrowers.org

Goat:

Goat Research
http://stephenville.tamu.edu/~jmuir/goat.html