This section of the University of California's Sustainable Ranching Research and Education Project site provides a good introduction to Bud William's Stockmanship techniques. It also provides some good anecdotes and makes a strong connection between stress, productivity and your bottom line.
List of resources for small flock owners located in Central Maine; and for people thinking of becoming small flock owners anywhere in the US. Has links including everything from mills for processing fiber, to books and periodicals, to husbandry tips.