Why Does Amazon Support the Marketplace Fairness Act Now?

Amazon has shifted their position on Online Sales Taxes. First they were vehemently against it and now they are for it. Why the shift? Very simply, Amazon has realized that this is a way to exploit their smaller competitors and get an advantage. Amazon, can foist a burden on smaller companies while finding ways to exempt themselves from the law. Like Walmart, Amazon sees this as a way to crush smaller competitors while using their political might and lobbying power to get exemptions and abatements from the law. Forbes published a blistering op-ed by Katie McAuliffe today titled "Amazon Can Support The Internet Sales Tax Because Amazon Is Exempt". It's an important read for anyone concerned with the Marketplace Fairness Act.