I forgot to join, will get to it.
So far the top alternate communities for Bitcoinhttp://reddit.com/r/Bitcoin/http://bitcoin.org.uk/forums/http://www.anoncoin.org/
And now http://www.bitcoinforums.net/
I know Vlad has someone doing some SEO work for him, is everyone else doing some bullshit backlinking on the term "Bitcoin Forums" for your sites? If not, get on it. Download a program called XRumor, grab some forum lists, have a ball, no one seems to be trying to pull rank for this term and I'm surprised a Black Hat hasn't jumped all over it just to abuse that term that is directed linked from Bitcoin.org