Now states are starting to get serious about collecting that money. Options under consideration include rewriting the rules on which dot-coms have to charge sales tax — or even requiring online retailers to send their customer lists to the government.
And in an ironic twist, states are getting support from tax-wary business groups, which complain that online retailers such as Amazon and Overstock are exploiting a legal loophole to undercut the competition on pricing.
Read more here: Cash-hungry states eye online retail for tax revenue