Two-sided marketplaces face a unique problem: they have to attract both buyers and sellers. That looks like twice as much work. As we’ll see in some of the case studies ahead, companies like DuProprio/Comfree, Etsy, Uber, and Amazon found ways around this dilemma, but they all boil down to one thing: focus on whomever has the money. Usually, that’s buyers: if you can find a group that wants to spend money, it’s easy to find a group that wants to make money.
