FYI for anyone on my FList who's got a journal on Insane Journal:
keieeeye (LJ name unknown) is starting a running tally on asylums (the name for communities on IJ), both fannish and non-fannish that can be found here on IJ.
I assume she'll update as new asylums are created, and it looks like several LiveJournal comms have started mirroring their LJ counterparts over IJ, just in case.