Well I`ve cast my vote for HC as it`s the only hamster forum I chose to join! It also has many knowledgeable members, it`s friendly and well moderated. First class!
I`m a member of Fancy-Rats forum which has now over 5,000 members
but even though I don`t keep rats anymore, I still feel part of that community because of the way it`s run and the number of great people on there.
There are lots more hamster fans out there that we need to find and point them in this direction!