What all businesses can learn from Uber and AirBnB

In our last article we referenced Bill Tancer's book 'Everyone's a Critic'. Here's another great article by Bill.

Its core message is that businesses such as Uber and AirBnB could not exist (and certainly would not have grown as they have) without reviews. 

So here's our question for those of you who are not yet clients: how on earth does any other business think it is going to succeed without them?