Sales tax revenues currently amount to about $150 billion annually
and make up approximately one-third of all state revenues....  States that don't have a personal income tax, like Texas, are even
more dependent on sales tax revenue. (Alaska, Delaware, Montana, New Hampshire, and Oregon do not have sales tax.)1

States with no income tax are Alaska, Florida,
Nevada,
South Dakota, Texas, Washington, and Wyoming. New Hampshire and Tennessee
limit their state income taxes to only dividends
and interest
income.  Illinois has a flat 3% tax.

1 http://smallbusiness.yahoo.com/r-article-a-2604-m-2-sc-59-sales_tax_on_the_internet_who_pays_it_who_doesnt-i