The two terms are social media and advertising. Sometimes an agency will use the terms "paid media" and "earned media". An advert is where you pay somebody (hence paid media) to interrupt a prospective customer and broadcast your message. It was invented in the 1930s, where brands spent money telling a unsophisticated buyer what to buy. Fast forward 90 years to the internet age, where we hate being sold to. An advert, has become the equivalent of a cold call. We all find it annoying and irrit...