StoutFiles - 7:13 pm on Mar 1, 2010 (gmt 0)

you are a US-based business and you are operating Your Site and/or Your RSS Feed solely for viewing and use by users within the US

The worst part about this is that they'll wait till it's time to pay up and then say "Oops, we checked your traffic and you had some non-US traffic, we aren't paying you anything". This happened to two people I knew. To use YPN you basically have to ban every non-US IP.