While I appreciate the promotion of contrarian thought and motivating people to think different, act different, dare to be different, these example do not look at all to me contrarian. At best one could argue, that they identify existing phenomenons that were repackaged into a scalable, investable product.<p>AirBnB: <i>normal people would never be willing to rent out their place--or a single room in their place--to strangers.</i><p>B&Bs have been around forever. Roomsharing, Couchsurfing, etc. The idea has been around for a long time, just not as a scalable platform.<p>Tutorspree: <i>Having a human being on the other end radically reduced the time needed to set up tutoring</i><p>Well sure, maybe it is by now "contrariant" for tech companies that a decent phone support can resolve problems quicker and is better for customer retention than online support ticket systems...<p>FlightCar: <i>Travelers get a free car wash, and don't have to pay $18/day for airport parking.</i><p>I like the idea, but it seems to me just a frequent flier version of similar peer-to-peer car sharing systems (RelayRides, Getaround, etc).