Having worked for an adult company (and doing consulting for a different adult company now), one thing that I always see is adult companies banning access and/or credit card transactions from certain Zip codes known to be risky for the Miller Test.

I always wondered about that though, since I remember hearing about a case that was overturned because the defense was able to show that the number of adult pay-per-view purchases in the area far exceeded the number of subscriptions to their website. Also (since I'm a developer and not a lawyer), I'd really like to know why it should even matter what the community standards in, say, Salt Lake City are if the website is based and hosted in California.