Check out my Op-Ed in U.S. News & World Report.
http://www.usnews.com/opinion/articles/2012/12/10/with-online-sales-tax-states-can-collect-revenue-they-are-owed
http://www.usnews.com/opinion/articles/2012/12/10/with-online-sales-tax-states-can-collect-revenue-they-are-owed