Well now I know...
What is ROR?
ROR (Resources of a Resource) is an exciting new website content description tool and format created by AddMe.com. It makes it very easy to describe the content, objects, and structure of your website so search engines and other web applications can better find and understand your information. For example if you are selling products, ROR enables you to document your product names, descriptions, prices, images, availability, affiliate programs, etc. Or if your site or blog provides information on a given topic, it allows you to describe how this information is organized (sitemap, topics, categories, new information, archive, blogroll, etc). ROR also provides terms for documenting objects such as contacts, articles, newsletter, feeds, images, audio, links, reviews, privacy policy, copyrights, and more.