Oklahoma State University provides profiles of many livestock breeds

University and college agricultural extension sites provide links and resources regarding cattle and other farm animals. Information about sheep is at the Sheep 201 page, and for goats as well as sheep there is the Maryland Small Ruminant Page.

Understanding livestock behavior is an integral part of working with stockdogs. Although this site is not specifically about herding, it provides valuable insight into handling animals.

and there is the challenge of working with geese.