Mechanical Turk: Amazon's Mechanical Turk is a resource for doing human-intelligence tasks, or as the site commonly refers to them, HITs. You get paid a very small fee for any given HIT and you'll need a good deal of volume to make a substantial amount of money. But it is a resource you can use in your spare time to generate a small income online.
Shopify is probably the most popular e-commerce solutions provider out there, but because there are so many products and options, newcomers can easily get confused. If you believe your audience has products to sell and could benefit from Shopify’s products and are able to elucidate the benefits of signing up for Shopify, you can definitely earn some big money with their affiliate program.