The links below are those that we have reviewed and you might find useful. We can not always vouch for the source but will try to review them to make sure they stay current.
Animal Poison Control (888) 426-4435
http://www.aspca.org/Home/Pet-care/poison-control
Pet First Aid and Emergency On-line Book
http://www.veterinarypartner.com/Content.plx?P=SRC&S=1&SourceID=20
Pet Health Topics
http://www.vetmed.wsu.edu/ClientED/A-Z-Index.aspx
Equine Information