[Air-L] Pinterest, Google+ and Foursquare stats

[Fabio]

Hello AoIR,


I'm working on a project about various social network sites and I'm looking
for updated data about Pinterest, G+ and Foursquare.


I already found old global stats but at the moment what I really need are
demographic and usage information (both global and nation-based, in
particular italian and european ones) about the current situation of these
SNS (or at least not older than few months).


Can anyone suggest or recommend a trusted and updated source?


Thank you so much: any help will be surely welcome.


--

Fabio Stefano Alla

Dipartimento di Comunicazione e Ricerca Sociale
Sapienza Università di Roma