The Messaging SIG has been meeting on Tuesdays at 16.00 UTC. Turnout has been a little low and we concluded that it's not the best time.
If you're interested in participating in meetings, please fill out the following survey so I can get a good idea of when to place them:
For the curious, here's a list of the archived meeting logs:
https://github.com/ralphbean/fedmsg/blob/develop/doc/meetings.rst
-threebean
infrastructure@lists.fedoraproject.org