I'm currently using Amazon Affiliates on a couple of my websites and make around $25 - $50 a month with an average of 2000 visitors a day combined. On one site I have a store page that lists Amazon products and another I just have some custom Amazon banners on a sidebar that appear on every page. My question is, how do you gauge your visitors to buy products from your Amazon ref links? Do you have in-text contextual links? Do you write reviews on products? Do you just lay up some banners and hope for the best like me? What method do you use and how effective is it towards your earnings?