Early 2000s, Yelp a start-up came up with a novel and friendly feature for the emergent world wide web. Ordinary users could post reviews of restaurants that everyone could read. As there were very few people who were really interested in writing things on the internet. Yelps engineers needed to give them a reason to. The story of how they incentivised this user-generated content is the jumping off point for Like.  Yelp reckoned people might be compelled to post reviews if they received compliments from others. Did you know, over 160 billion times a day, someone taps a like button. How … Continue reading Embraced by millions, Turbocharged virtual button that changed the world