Hi!
I am a MBA aspirant for 2012.
I have just taken the GMAT (670), and prepared it within a study group, which helped me significantly in improving my score from 640.
I am know heading for the Toefl, and feel confident that preparing it through a study group would be helpfull!!
If you are interested in launching a study group (non virtual, ie physical where we would have to meet at a place in Montreal), let me know!
Sooner , the better...
Cheers
Nicolas