I'm trying to find a research resource for MMOs -- preferrably where people send papers to be published, have conferences, etc. If nothing else, just a repository of articles would be nice. Is there a site like that? I'm assuming it would be a subconference of a bigger group.
Such a thing does not really exist; games are not a very established subject in academia (except for graphics, although there is a trend towards that changing, perhaps) and what "research" is done that specifically pertains to the MMO field is likely done internally by studios developing them and thus would probably be considered a trade secret and kept undisclosed.
Your best bet is probably the LOGIN conference.