Hi,
I started a class sessions for peer discussion, please join my course its for peers (not a 100% classroom) but like this forms a kind of virtual forum & Class series.

Please join my course at http://www.wiziq.com/course/697-GMAT-Study-Group

http://www.freegregmatclass.com/free_gmat_classes.html
(all ppts and other stuff are here; 100% free and open)

Registration and everything is free and open for all.... Check out old recordings to know more.
You are free to register your own session and invite GMAT study groups

Best of luck for the GMAT