Sigh. Mudding. One of the classic ways to fail college. Fortunately, I have't gotten that carried away with my mudding yet, though it is an amazing timesuck.
JaysHouseMOO is a text-based virtual reality (read: MUD) where I spend a lot of time idling, and occasionally work on (or at least talk about) interesting programing projects for MOO. MOO stands for Mud, Object Oriented, and its server is primarly worked on these days by Pavel Curtis at Xerox PARC.
InfoCity is a MOO run here at CCS. It's the long-awaited incarnation of an idea that had been kicking around the crew for at least two years.
LabSpace is somewhat MOO-related. Even though it's worked on right across the hall from where I usually hang out, I don't know all that much about it.
One of the coolest new things to happen around MOO lately, IMHO, is LPMOO, Rob Leslie's simulation of the MOO server. Pavel himself gave high praise to LPMOO in a message he sent to the moo-cows mailing list concerning his ideas about the future of MOO.
I had a pretty serious flirtation with LPMuds back in my freshman
year, but it didn't last too long. I found I could only take so much
of running around and chopping monsters up online. These days, I only
ever hang out on Infinity,
where I go by Kragar (see Stephen Brust's amazing Vlad Taltos series
to get the name reference). Infinity originally ran here at CCS; Rob Leslie started it. It's since moved away,
and Django, Rob's alter ego, has retired. I got reaped there a while
back, so I'm going to have to build up my character again, but such is
MUD.