Blogged about that (I am a Texan in Iowa, go figure) last week:
Here is how to keep Amazon | Random Ramblings from Iowa
This is a big issue for Affiliate Marketing. Does it pay to monetize with Amazon when you may be dropped at any time?
Only a few states don't have sales tax:
If you live in any of the states that are changing the rules for tax collection, and you engage in affiliate marketing, your business is in jeopardy. ABestWeb has a long list of online merchants who are dropping their affiliate programs in a state every time that Amazon drops theirs.