Dumb Friends League: Canine Escape Artist - Dangers of pet dogs escaping, why and how they do, and recommendations for resolving the problems. [PDF file] - http://www.ddfl.org/behavior/escaping.pdf
The Effect of Dogs On Wildlife - Explanations of reasons many parks have banned dogs, including direct and indirect predation, disease transmission, and competition for resources as well as hazards to dogs and visitors. - http://tchester.org/srp/lists/dogs.html
Colorado Journal: Rip and Tear Take a Walk - Article by Bob Kretschman on why hikers should keep their dogs leashed in the wilderness. - http://www.coloradojournal.com/dogs-leashes.htm
Parkpatrol.org: Encounters With the Unleashed - Article by Ed Sayres advising owners on what to do when an unleashed dog approaches their leashed dog. - http://www.parkpatrol.org/trailhead/200109/v07n03f.htm
A Message To Dog Owners from Livestock Owners - The harm dogs can cause to livestock, responsible dog ownership, and incidents on San Juan Island, Washington. - http://www.rockisland.com/~castalia/dogs.html
Your Dog and Livestock - Information about the laws of Newtownabbey, Northern Ireland, and tips on how to train dogs to behave around livestock. - http://www.newtownabbey.gov.uk/dogs/livestock.htm
Metroactive News & Issues: Folly Rancher - Report of a rancher shooting a dog and the issue of pet owners adapting to rural life. - http://www.metroactive.com/papers/metro/05.11.00/cowsvsdogs-0019.html
Evaluating Predation by Dogs - Damage done to livestock and wildlife, including graphic photographs showing typical signs of attack by domestic dogs. - http://texnat.tamu.edu/ranchref/predator/dogs/dogs.htm
Good Dog Magazine: The Ugly Side of Dogs - Debbie Eldredge, DVM, presents a case of a dog allowed to roam that killed ducks used by dog owners for herding training. - http://www.gooddogmagazine.com/debuglysideaa.htm