"While AirBnB is the largest of these new services, it isn’t the only one. A half-dozen upstarts have emerged in the last two years, with names like iStopOver.com and Crashpadder.com, offering the convenience of a hotel, the comforts of a home and the price tag of an up-market hostel. Call them social B&B networks, or maybe peer-to-peer hotels."
I came here to say the same thing. My first thought upon reading the title was that it would be about traveling the parts of Europe where hotels don't exist (i.e., the non-touristy areas).