Within the Affiliates link you are able to create and manage affiliates. Affiliates allow you to link up with other stores who would like to sell your product. You can manage affiliates by setting up a commission amount as well as how the affiliate link will appear to customers. You can go as far as creating a separate style sheet so that the affiliate link looks just like the store's website but it will be selling your products.

HELPFUL TIP: To allow the ability for your customers to signup to be affiliates of your site you will first need to "Enable Sign-up Form" by going to the Settingstab > Affiliates link (within the Settings menu on the left) and check the first box on the window and then click the "Ok" button at the bottom of the page.