I always go to FreeDominion. Yahoo is a nightmare to use.
Yahoo groups used to be okay, but the last three or four "interface updates" have made it near impossible to track threads, or even see what's happening.
I like to keep up with Free Dominion anyway -- lots of interesting stuff there. It's a tribute to FR, though, that we haven't had an extended "down" in so long that I'd forgotten my login at Free Dominion, and had to make another!