According to expert forecasts, there are going to be over 3 billion mobile users in the world in the next couple of years. This means that the mobile market is a huge money-making opportunity. For that reason, its not a surprise that many merchants are starting to focus on mobile affiliate marketing! How this system works is that the mobile affiliates earn money according to their performance. Each time one of their users buys a product/service via mobile phone, the affiliate gets a reward from the merchant. Usually, the reward in question is the percentage of the money earned through each purchase.