It depends on the niche you want to work in, how many visitors your site gets per month, and what affiliate programs you are promoting. For example: if someone clicks through from a page that has very little traffic but then makes a purchase at one of those stores - you will get paid for that sale regardless! Higher-tier affiliate marketers make thousands of dollars per day. That's not a typo! But before you start dreaming about making that much money, remember that affiliate marketing is an investment. It takes time to build up your business and learn how everything works but once it does, the sky's the limit as far as what you can earn with affiliate marketing - all from the comfort of your home too!