Dialog on rpg research on rpg.net
http://forum.rpg.net/showthread.php?627357-Role-playing-Gaming-Research-Project
Also some other less active forums with similar postings:
https://groups.google.com/forum/#!forum/car-pga
http://community.wizards.com/go/thread/view/75882/29125993/Role-playing_Gaming_Research_Project
http://www.merlyns.biz/index.php?name=Forums&file=viewtopic&t=1718