hello. ROR is an exciting new sitemap tool that uses XML feeds to describe your website. These sitemaps are structured feeds that enable search engines to complement text search with structured information to better interpret the meaning of your site.
ROR sitemaps are pretty old actually. I don't think it's really important though. Simple xml sitemaps and html sitemap are sufficient for bots and humans alike.
We have had good success since switching our sitemaps to html! Here's an example, you can style it however you like! www.jvfconsulting.com/sitemap.xml