This is available still:
http://www.wireclub.com/chat/room/kansas_city_contacts
rated adult - no membership in the room required - but you must create an account to access the site.
A Yahoo group could be created. Lots of options, if they are used. But anything offsite may be verification problems.
I have done the chat room here a couple of times and not having multiple rooms is not a good design in my personal opinion. It could be that chat is not a major area for the site owner and/or staff? Only they can tell us that. I'll ask that question at the board level and see what happens.