I learned about BarkNetwork.com today while watching the Show Dog Championship, sponsored by ProPlan.
The BarkNetwork is the worldwide home for Athletic Dogs, where you can find out about dog sports, teach your dog tricks, find local dog organizations to join, events, and more. It is a social network as well, so you can talk with other dog lovers and get tips or advice. You can also see pictures and watch videos.
So if you have any interest in dog athletics, I would suggest joining this network to learn more and find events and organizations in your area.