Case Presentations on Google+?

I’m still trying to find ways to use the really professional network, Google+, in medicine and I asked my community a few days ago about that:

I haven’t asked you about that for a while, but how have your habits been changing in the last few weeks on Google+? Do you use it more than Facebook? For me, it seemed to be a fantastic professional network, but still have many more peers on Twitter and Facebook. What to do?

I got some interesting opinions and ideas, but a French colleague  told me French doctors actually perform case presentations in private ways. They upload information about the case, discuss it with other peers and get to a final diagnosis. Based on the very simple privacy settings of Google+, it can be useful for such purposes. Anyone else with similar experience?