To say that the meaning of the expression “word-of-mouth” has changed over the past 10 years is an understatement. Word-of-mouth used to describe the act of sitting down to lunch with five of your friends or colleagues and telling them good (or bad) things about the latest product or service you purchased. These friends might relay your message to one other person in their circle, and in total, you are responsible for spreading news about this product or service among 12-15 people over the course of a day