Click on the groups tab. In the blue box on the right in the first column is a link for active chats. You can see which public group have chats running. There is also a chat room open pretty much 24/7 in the CM Newcomers groups. Another option would be to to do a search for "chat" on the find a group page, which you can access by hovering over the groups tab or in the groups blue box. The only thing about the group chats is that you have to be a member of the groups to join in.
at 11:52 PM on May. 7, 2010