Since it doesn't appear anywhere in the headline, this is for CasaHop (http://www.casahop.com)

Just for the record, I DO NOT agree with the headline in any way, shape, or form. House swapping and vacation rental swapping has existed since before the internet, and while adding social networking to the transaction is a nice touch and may even work to make a viable business, I can't see how this kills Airbnb, or even competes with it.

[edit] disclosure: vacation rental owner advertising on Airbnb and other vacation rental sites, has never worked out to successfully swap houses with the 5-10 parties who've inquired over time.