Everquest, it appears, still has a thing or two to teach us about online worlds.
This is a great read by Andrew Phelps about the eminent merger of EQ servers. Very well thought out and welll written. While playing Neocron, I often wished they would merge servers since there were about 400 players on average per server. On a Friday night the most populated server (the one I played on, the Saturn Server) would only have about 800 players. I wanted a merger of all the servers but after reading this it could have been a bad idea, moreso with a smaller number of players.
MMOG players are a fickle bunch.