rNews 1.0: Introduction to rNews
The New York Times started using rNews to tag content on the 23rd of January, 2012. To use rNews as fodder for your application (mapping or otherwise), it won’t hurt to look over this introduction to rNews.
From the website:
rNews is a data model for embedding machine-readable publishing metadata in web documents and a set of suggested implementations. In this document, we’ll provide an overview rNews and an implementation guide. We’ll get started by reviewing the class diagram of the rNews data model. Following that we’ll review each individual class. After that we will use rNews to annotate a sample news document. We will conclude with a guide for implementors of rNews.
I would validate the “rNews” periodically from any site just as a sanity check.