What is ROR?
ROR (Resources of a Resource) is an exciting new website content description tool and format. 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.

ROR information can be easily added to your website by adding a ROR File called ror.xml. To create the file ROR provides templates and examples. It also provide a ROR File Editor, which will extract information from your website and allow you to describe it further. Larger websites can also generate ROR files from their databases.

Why Describe?
But why is it important to describe your website? Well, consider this phrase: "We offer a 10% discount on all our products until Mother's Day". While these words mean a lot to your visitors, they unfortunately won't mean much to a search engine or shopping search engine. Language is extremely complex and it will take time even for Google to elevate search to such levels of sophistication. And that's just one language, English.

So for now, to communicate your product information to shopping search engines you typically need to provide a feed (a machine-readable description of your products), and re-submit that feed to each engine each time the information changes. And to make matters worse, none of these feeds have the same format, so you also have to learn each format.

Another Approach
ROR suggests a better approach. Since search engines already come to your site to read text information about your products, it makes sense to also read additional information like prices, image URLs, discounts, etc. This way, you only change the information once, in your ROR file, and that's it. Product information is just one example but it illustrates this issue rather well.