Peer-to-peer renting companies are sprouting up all over. Depending on the company, participants can rent their unused car, unused bedrooms and/or potentially just about anything of material value that might from time to time be lying dormant.
The Internet, of course, is allowing the sharing of information to create these markets where markets did not exist before – or at least markets on any wide-scale. Participants get to make a little extra dough. The companies overseeing the markets just may make a lot of dough by aggregating the masses. Other companies have aggregated the masses before on the Internet and done quite well, such as EBay. There does seem to be competition, but maybe not local competition if one of these companies gains a foothold in Boston and another in Las Vegas, for example.