Vetapedia
links1
PawPage
links2
My PetCare TV
links3

http://www.veterinarypartner.com

http://www.canismajor.com/dog/jkpup1.html

http://www.heartwormsociety.org

http://www.greatpets.com/

http://workingdogs.com/doc0002.htm

http://www.aphis.usda.gov/animal_health/

http://www.cdc.gov/ncidod/dvbid/westnile/index.htm