Hi Ouriel, not sure that someone will achieve disrupting Airbnb for the following reasons: A) Scrolling problem: must have been overseen by lack on testing on smaller laptop screens. This is what happens when you give large high definition screens to your webdesigners / progammers: http://static1.businessinsider.com/image/4eb96afc6bb3f78646000069-590/the-office-itself-is-pretty-swanky-as-fits-a-member-of-the-billion-dollar-club-those-chairs-look-comfy.jpg Should be easily fixed by the Airbnb team. B) Not available / Contact the host How to manage availabilities on a marketplace renting private rooms? The only way to push renter / owners to update their calendar availabilities is to keep on sending them cutomer requests / notifications (with $$$ indication). Otherwise you might never have a chance to have as much listing as airbnb, therefore making the marketplace experience useless for end-users. Happy to hear your thoughts if you have a better approach to incentivize owners to update their calendars.