1. you have to get a amazon affiliate account 2. you have to build up a website if you are going to do website marketing, or an email list for email marketing 3. or, get a google adwords account for direct link 4. promote the products with your aff link 5. wish you good luck ~
Why promote the products with Google AdWords? It is obvious that you can promote your sites with other effective ways, such as SEO, forum marketing, social media marketing, etc.