Why collaborative education model needs social networks?

Recently in a stunning announcement Atos, the European consulting firm announced that they would be moving away from corporate emails. So in the next three years Atos would officially sunset its email clients across its global locations.

I do remember my days as a B-school student where most of my time was spent mailing reports and research reports across my study group. I remember that I did almost 20-30 mails a day to the same set of people.

Collaborative efforts like research do require a lot of information exchange among members of the group. As this exchange is in the form of huge documents e-mail was the chosen form of transfer. But those were the days before the advent of social networks.

Connecting - Young Users via Social Media V/s
Older users via Email

Today our Toastmasters club uses Facebook extensively to transfer documents like training materials and members list across the club. All a member has to do is to log into the Facebook page of the club to access all materials.

Again these documents are regularly updated with the latest training material and any additions there of. A similar approach is developing across research organizations who prefer to use their internal social network tools to good effect.

But I personally feel that we have not not even scratched the surface. I would like to hear from you, as to how things have changed in the research and collaboration field due to advent of social media?