Referrals are a frequently used growth tool, but at Airbnb our antiquated referrals system was underutilized and underperforming. It was barely findable on the website and didn’t exist on our mobile apps! I’d like to share with you some tips we used to increase the program’s user signups and bookings by over 300% per day. …

Source: nerds.airbnb.com

Improving referrals embodies growth: it’s highly measurable, scalable, and is all about identifying a growth pattern that’s already happening but amplifying it at a key moment.