What is affiliate marketing and how to become successful in affiliate marketing? Well, this is an important topic for those wannabe marketers who want to earn money online without spending any money or almost no money in return. So, what do they do to earn money? They simply recommend products and/or services to their audience which are made by other people. Simple as that. Well, it may not be as simple as it sounds. So, let`s dig deeper to understand the nitty-gritty details of the topic.