Confesso di avere guardato ning perche’ dietro c’e’ Marc Andreesen, alias il signor Netscape. Dovro’ tornarci a guardare meglio, ci deve essere qualcosa al di la’ della definizione nelle FAQ:

Ning is a free online service (or, as we like to call it, a Playground) for people to build and run social applications. Social “apps” are web applications that enable anyone to match, transact, and communicate with other people.