Amazon (AMZN) plays by its own rules. Anyone following the Internet sales tax debate has watched state governments buckle under pressure from the online retail giant. And how could they not? As this infographic by blogger FrugalDad shows, the company's annual revenue is larger than the GDP of half of the world's countries. Here's a peek at who you're paying when you opt for the Free SuperSaver Shipping:

Source: Frugaldad.com