A research group at the University at Buffalo, State University of New York is recruiting people to participate in a study they are conducting about "leakage between the real world and collaborative gaming work, in terms of both personality and social life"
Hop on over, assuming that you can wrench yourself free from Guild Wars or World of Warcraft, and fill out their survey.

The group's end result is to determine how people who play massively multiplayer online games make meaning of their world and what role those games play in their everyday lives.

Playing Myself: The persistence of self-image in MMOGs [Research Study]