Before you begin marketing products for affiliate programs, it’s important to understand what it costs to promote them. Most programs have no upfront costs, but you should consider other costs, such as outsourced content and updating your website. The best way to determine how much you’ll spend on marketing is to focus on products that you know well and believe will benefit your customers. There are many different ways to promote a product, so be sure to find a program that suits your needs and budget.