However, it has reminded me to talk about writers' forums. I belong to Codex, which is a group for speculative neo-pro's. To join, you need to have sold a story at professional level (SFWA accredited plus a few others) or to have attended an interview based workshop like Clairon or Odyssey.
It really is a fine group. The membership requirements means that we're all working at the same level. Sorry if you don't qualify-- yet. You can do it. Keep on subbing.
Codex holds competitions (groan) just for the glory, we chat about the craft, about the submissions opportunities, about the business of writing. There's also a fast critiquing facility.
What writers groups do you belong to? Any that you'd recommend?