[quoting Marshall Jones, 10 Dec 98.a] Chet Hedden, who was involved earlier in this conversation, used to (may still) moderate a listserve on the study of computer games...Chet might be able to put you in touch with some of them.
The list is currently moderated by Education Professor Marv Westrom at the University of British Columbia and is now called "psygame-list." This is not authoritative, but I think the procedure to subscribe is to send e-mail to: psygame-list-approval@interchange.ubc.ca.