Nothing, except your desire to be an affiliate. You don't even need a website, but having one does help.
You can promote our products via search engines, postings on internet forums, or by simply emailing all your friends your affiliate link to our products. But please don't spam anyone!
All you need to do is send a visitor to our site via a special link (an 'affiliate link'), and if he or she buys anything from us, you will get a commission of 15% of the product sale value (excluding VAT).