Your website is set up to display current eBay auctions of products related to your site. You are paid for each and every item that your visitor purchases from eBay for a period of seven days! This is a little bit difficult to explain but here goes.
When your visitor clicks on one of your auction listings, eBay's tracking system automatically stores a "cookie" on their computer which is linked to your account. If the person purchases something, you get paid a commission. Additionally, if the person decides not to make a purchase right away but goes back to eBay later and buys something, you will still be paid. It can be a week later and a completely unrelated product and you will still make commission on their purchase! Here is an example of possible profits!