I've been exploring SL forums that are related to education and it seems that [SLED] Second Life Educators is the best. It's a resource for educators and academics interested in using Second Life for teaching. There's a wide variety of active threads and some very insightfull experience to be had on there. I've also been advised of Pathfinder Lindon's research in SL. Seems very interesting so I'll look into this in more detail at some point.