If you use the Amazon affiliate program, EasyAzon will help you make more commissions and save you a lot of time in the process. You can add Amazon affiliate links from within your WordPress dashboard. If a user visits your site from a different country, you can redirect them to their local Amazon store using link localisation. This way, you won’t miss out on your commission (you need to be a member of each country’s Amazon affiliate program).
There’s also an “Add to Cart” feature that increases the number of days you can be credited for a sale if your website visitor purchases from Amazon. To see the plugin in action, visit My Bookshelf.