There are many factors in Airbnb’s remarkable growth. Design, booking, two-way reviews, data-driven product development and marketing, innovative growth hacking, among much else. But the most important one: They figured out early on that the host is the lynchpin. Why is that so important? Well, how do you create some semblance of product consistency across millions of homes when you don’t own the inventory? Post-booking, the guest experience is completely in the hands of the host. And Airbnb has created an incredible community of engaged hosts. Get the full story at WIT