I never realized I hadn't posted this here, but there is Just Chinchillas Forum at http://www.justchinchillas.com
It's a very friendly forum for adult chinchilla owners. In order to view the board you must register. The forum has been around for a few years now but we recently moved to a new host, so those old members who were on the new forum, will need to sign up again at this new forum. ::nod::