[Air-L] Benefits & Drawbacks of teaching in Second Life

I'm putting together a presentation for my university next week on the use of virtual worlds as virtual classrooms.  One thing I want to touch upon are the drawbacks and benefits of using Second Life for teaching.  I have the following, and I would like to know if you think there are others I should discuss. Benefits: audio visual & kinetic learning styles, collaboration, anonymity encourages experimentation, geographics no longer restrict participation, new ways to experience old knowledge. Drawbacks: interface learning curve, anonymity encourages disengagement, technological divides and issues, reduction of socializing, applicability of knowledge gained.   CarrieLynn D. Reinhard, PhD Dominican University