a short interview up with Elliot Coward of Corum Online, a free-to-play, microtransaction-funded MMO (from the same company that runs Flyff and a few more originally Korean games). Corum has a nice little twist though -- in this game, not only do players level up, but so do dungeons. During the week, dungeons that have more players going through them will "level up," and get harder monsters to join, and players can even take over dungeons and gain rewards for their control. The Wikipedia page on the game says that things inside are pretty much taken over by high powered groups and guilds, but considering the size of the game, there's still quite a few dungeons that are uncontrolled. Sounds interesting.
To that end, Coward says that the devs are currently working on beefing up the guild system, including building up some systems for guild vs. guild play, and they're always trying to push out more dungeons -- Coward says that "MMOG players can burn through content like a hot knife through butter." Sounds about right to us.