You need to sign up for Amazon affiliate program just like you probably did for Google Adsense. Try to type these Amazon keywords into the Google Search Engine to join the programe and then you will get your Amazon code. You copy and paste it into your affiliate settings and then use the Amazon capsules in your hubs to promote their products. If you still have problems, type Amazon affiliate as keywords in the search box here on Hubpages to read detailed hubs about your question. Good luck!