What forums and boards are most popular among theoretical physicists ?
You might consider reading sci.physics.research on the usenet. It's the only "board" in use by many physicists.
Most communication among physicists happens via journal articles or pre-prints. You might want to look at arxiv.org for those.
Thank you for the answer.
So, what are you doing here ? :)
In addition to your administrative work.
Ps: if you know where to look for the answer.
Well, that's a dumb question. I enjoy it here.
Separate names with a comma.