Live meeting software for Linux questions

[Oren Beck]

What Linux software can be recommended for live meetings?
Ranging from the simplest "remote family meeting"
to elaborate stuff for perhaps - the RMS remote lecture to KCLUG?

And related to that possible things such as remote meetings of KCLUG
with OTHER related groups. The past archives were and are a good concept,
but the real time interactive aspect seems worth exploring.

"The next best thing to being there"