Well, the question is the title. Are there any active channels for discussion about PM? i'm currently hanging on irc.freenode.net and it would be great to have a place to ask questions live.
This channel is for people involved in building project management software for the community:
"#PMS ← Project Management Software Channel where pms activity is published in real time"
I don't see many channels targeting Project Management in general; however, this page does offer some tips on how to find IRC channels that you may be interested in: