Let's see there's

Pet Related.
Pet Talk (most of the time)
For the Love of Dogs (not very often)
My Dog place or whatever it's called I've only posted once or twice.

Non-pet
AFC-Ayeka Fan Club (haven't been there for ages)
FFML-Fanfiction Mailing list
AgileCan- Agility Canada (lurk mainly)
and Live Journal but that's not really a message board just an online journal.