Well, whois gives les suspicious information in this case: The company registered their own domain name; they're based in Charlotte, NC, and both the administrative and technical contacts are using the company address and telephone number. They don't provide any sort of physical address information anywhere I could find on their Web site, but they do have a telephone contact number in the Charlotte area. Since they claim to have been written up in national press, it might be worthwhile doing Web searches for articles in those venues (e.g., NPR), rather than taking their word for it. One thing I don't like about their Web site is their use of tinyurl redirection to get to information within their own domain. That seems weird, as though whoever manages their site doesn't quite understand HTTP.