I have been a couchsurfer for years and love the commmunity. airbnb seems to be exactly like couchsurfing except you have to pay to surf somebody's couch. Comp

I have been a couchsurfer for years and love the commmunity. airbnb seems to be exactly like couchsurfing except you have to pay to surf somebody's couch. Comparing airbnb and couchsurfing experience would be a great exercise in understanding the altruism and economics of the internet and online communities.