Good interactive map, with files available...
http://www.itepnet.org/whopays/
If you just want the executive summary:
http://www.itep.org/pdf/whopayses.pdf
"The main finding of this report is that virtually every state’s tax system is fundamentally unfair, taking a much greater share of income from middle- and low-income families than from wealthy families. The absence of a graduated personal income tax and the over reliance on consumption taxes exacerbate this problem in many states."
- 86 47 -