I have bitten the bullet and started poptimists, an attempt to create a pop music community on LJ. I can't work out how to change the user info (and have deleted all my own in the process, farewell interests list!). To be used for debates, links, jokes, MP3s, raving, suggestions, froth, whatever. Sympathy towards modern pop music, and a friendly outlook, the only requirements.
I don't know exactly what I want it to do or become but I like the fast-comment, high-turnover LJ dynamic and as a format it feels more suitable for general pop chat than other prominent music boards.
It might go nowhere, it might be good. Up to you, really!
UPDATE: Don't expect any actual posts in it today though, well not from me anyway, if anyone *else* wants to then go ahead. And I'm setting up a special directory on the FT site for, erm, interesting files.