Very useful info. Crowd marketing is based on communication, i.e. you don’t actually sell anything, and the resulting sale is rather a consequence of your work. People are tired of conventional advertisement and you need to earn their trust, receive a good feedback to your expert opinions. Your goal is to ram home a point to a person, a crowd that you and your product are the best, last and only option. And only after that you’ll be able to sell something and even multiply your sales.