Amazon's Web Services expose all their product information to developers using a couple of different methods: SOAP and REST. In this guide, I will look at how you can use REST, or XML over HTTP, to retrieve information. XML over HTTP is a URL-centric approach so the key to querying the Amazon data store is to construct a querying URL that has the right parameters to pull out the information you want. In this example, I am going to extract a list of bestselling Power Ranger toys from Amazon UK.We start our URL withhttp://The first thing you need to do is then identify the right resource to connect to, which will depend on the regionality of the results you want. To extract information from Amazon UK web services, use:xml-uk.amznxslt.com/onca/xml?Service=AWSECommerceServiceThe next step is t...