If you have a great product, but no money to invest in a physical storefront, staff, and bills, why not set yourself up online? Aside from the lack of huge monetary investment and time commitment, the marketing opportunities online are endless. Also, although a storefront is great for branding purposes, it does limit the size and scope of your audience. By setting yourself up with an e-commerce store, you can:
Sign up for a reputable affiliate network: Aside from Amazon, there are dozens of large reputable affiliate networks, such as Share-A-Sale, Clickbank, and Skimlinks, that specialize in connecting you with merchants who are looking for affiliates to sell their products. They charge relatively low commission fees for the privilege of connecting you with merchants, and the merchants on these sites tend to offer much higher commission percentages or set dollar amount payouts.
Clearly, there's a lot of demand on Amazon, and if any product is going to sell, it's going to sell well on Amazon. But the goal here is to source the right products that will easily sell at the world's largest online retailer. Generally, products between $10 and $50 sell very well here. Just be sure to do the right market research before jumping on this bandwagon.