E-Commerce Taxation

E-Commerce taxation is difficult to resolve because the United States just cannot shut the website down because the States are not getting taxes from what people sell through online. If they stop people from selling stuff through online, they would say they have constitutional right to do whatever they wants to do with their stuff. And people are just trying to save money by using that method, so the states cannot really say anything about it, but because of that, they are not getting as much money as they used to.