Hehe, yeah. THere are definitely some real minor celebs, and maybe 1 or 2 major ones (though darned if I'd know who)... a lot of them are fake pages, but comedians and musical artists, is very likely that they are up there (or at least their agent is).
And looky here, I have the LOST characters in my friends list!

I think we should ask them about what they're doing on the island lately during the hiatus. Sayid told me he was able to get the island hooked up with WiFi, and now they converted the shortwave radio to a blackberry.