David Los Angeles, CA 3/29/2011 6:35:48 AM Most people may not realize it but there are plenty of opportunities to compete in canine disc competitions held all over the U.S. and around the world. Other organizations, including the Ashley Whippet Invitational (the oldest) and the Skyhoundz Series (the largest), stage canine disc competition series. Here's a link to a great free digital disc dog book that will help you get started in canine disc play and competition with your canine: (http://skyhoundz.com/discdogsrock.html (available in several languages).