one of the things I liked at MF was the "Users Online". it's nice to see who's around. I know that we don't want to get into a bunch of statistics, but another forum I frequent which uses UBBThreads,
AWordADay has several modules on the right hand side, some of which might be interesting.
I am definitely not looking for more work for tacit, or any of the mods, but thought perhaps some of the possibilities might fit well here.