Caleb Booker's great post about ROI in virtual worlds and why they're waaaaay better than webcams!

Caleb Booker's 'Business in Virtual Worlds'
So then does the shape of the screen matter?
Was LBJ a “close talker”? Where avatars come in... yes, you can maintain some personal space.
http://www.calebbooker.com/blog/2009/01/27/roi-in-virtual-worlds-1-why-webcams-fail/