The term passive income essentially refers to any revenue stream that doesn’t require your constant attention and care. For example, if you were to sell a mobile app then you could theoretically release the app onto the app store and then let the sales role in. You could then head off to retire to a tropical island and you’d still be earning the same money. This is the dream for many internet marketers – to be able to earn cash while they sleep. Not only because… well that’s obviously amazing… but also because it means the business model is highly scalable. If you can release one hit app, you can release a hundred. You won’t be working any extra, but your earnings will have gone up x100! The problem with releasing an app though is that it requires skill, time, money and luck. The Average Joe cannot simply decide that they are going to release a best-selling app