What is Albergo Diffuso?

Rassegna stampa internazionale sul fenomeno degli Alberghi Diffusi
http://www.insidersabroad.com/italy/blogs/featured-interviews/posts/more-than-a-mere-hotel-albergo-diffuso-is-a-welcome-alternative

http://www.travelandleisure.com/articles/reviving-the-italian-village

http://travel.nationalgeographic.com/travel/italy-hotels-traveler/

http://albergo-diffuso.blogspot.com/2012/02/albergo-diffuso-philosophy-explaining.html

http://travel.nytimes.com/2010/05/23/travel/23journeys.html?scp=1&sq=albergo%20diffuso&st=cse
(Nell'immagine l'Antica Locanda La Diligenza, Albergo Diffuso di Borgo Pace)