Quite a few, but I read more than post.

There's several yahoo lists: Cairn, Collie, Agility and Frisbee

An Australia message board for dogs, which is very similar to
Pettalk.

A political board I go to that's populated with a bunch of former
Xenites, that kind of migrated there after the Official Xena Board
shut down upon the show's cancellation. I'm not so much into
politics right now, but so many kewl people hanging out there, I
gotta check in on what they're saying from time to time.

Par...