How I Built This with Guy Raz

Yelp: Jeremy Stoppelman

In 2004, two former Paypal engineers, Jeremy Stoppelman and Russ Simmons, were spit-balling new internet ideas. Out of their brainstorm came a site where you would email your friends asking for local business recommendations. The launch was a flop, but they discovered that people seemed to enjoy writing reviews not just for friends, but for the general…