Schola now has a brand new chatroom for Latin.
It is a matter of logging on and hoping someone else pops in - if you're online, just keep the window open - Schola now has enough users that eventually someone will pop in.
The chatroom also allows for video and microphone, or just the usual typing.
There is a link to the chatroom on Schola's main page:
No registration is needed to use it, simply type a name into the 'screen name' box, and click login.