Hi Carolyn,
I can help – I wrote that article. 🙂
That particular service is called HideMyAss.com
But there are many VPN services out there that are pretty good – a Google search will yield many – just check out reviews too to make sure you get a good one.
Basically the VPN will show your computer as being in the U.S. no matter where you are in the world. This allows you to view some content that is restricted outside the U.S. due to copyright. As I stated in the article, some people use it to show they’re in the U.S. for telecommuting jobs that require them to be in the U.S.