<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/WebSite>
<http://www.zen-cart.com/showthread.php?98329-How-do-I-get-UPS-and-USPS-quotes-in-Zen-Cart-to-match-USPS-UPS-rates-in-my-PayPal&p=560349&mode=threaded>