There are many exciting on-demand start-ups out there going after some really interesting market opportunities. Sadly, many of them won’t make it in the long run. In the previous generation of marketplaces there were countless contenders going after many different opportunities. Yet, only a few became highly successful – companies such as Yelp, Zillow, GrubHub and TripAdvisor. My guess is that the same will play out in on-demand. In order to evaluate the ones that have the potential to succeed, my colleagues Ryan Sarver, Archit Bhise and I put together a 10-step framework that guides how we evaluate on-demand companies. We presented this framework a round table event recently hosted by The Information. The ten categories are...