How are sales tracked?

[Micfo]

Simply you have to place a one of our banners on your website with a referral link. When a potential buyer clicks through the affiliate URL, a cookie is set in their browser. A "cookie" is more than just something tasty to munch on - on the internet it means a little piece of information that a website can store in the visitor's browser, and in this case our affiliate program stores the referring affiliate's username.

This cookie remains in the visitor's browser if they leave your site, or even turn off their computer and log back in a month later.