As far as growth hacking goes, airbnb+craigslist is considered to be a genius 'hack' http://www.quora.com/Growth-Hacking/What-are-the-Top-10-Consumer-Internet-

As far as growth hacking goes, airbnb+craigslist is considered to be a genius 'hack' http://www.quora.com/Growth-Hacking/What-are-the-Top-10-Consumer-Internet-Growth-Hacks-that-have-been-A-B-tested http://www.quora.com/Growth-Hacking/What-are-the-Top-10-Cons... which I think is well, something you have to do in the early stages of your startup. :'-(