No matter what your skill level is right now when it comes to Internet marketing, or selling over the internet, CPA is one way you can earn money without actually having to sell a single thing. Yes, you did read that correctly - you can make money online without having to make a single sale. How is this possible? Simple: CPA or Cost Per Action is an advertising platform that allows companies to pay a commission when certain actions are carried out, which do not always have to be sales. While CPA is a great way for advertisers to make sales it is also a brilliant method to generate leads. You may ask yourself why anyone would pay to generate a lead and this is a valid question. Listen to this book and learn more here.