How does a mailing list let you earn extra income selling affiliate products? Imagine having a list with thousands of people who are interested in the products that you offer, do you think that you could use that list to earn profits? Of course, with a single email you could drive people to sales pages, to your websites, to your storefront, or your affiliate pages. The hardest part of affiliate marketing is finding the right audience and getting them to listen to your message, but with a mailing list you build your own audience and easily promote your affiliate products to them.