One Section of my [external links are visible to admins only] is about Site Maps, it's usage and tools. I have for example the ROR Sitemap generator available as well.
What most people don't know is, that all Search Engines support ROR, they just don't mention it.
ROR is the original XML Site Feed format before Google started doing their own thing.
Google Sitemaps, Yahoo (and other Google and Yahoo Services) accept ROR Feeds. Check it out.
Btw. I added the XML-Sitemaps Service and also the FAQ to the section, because I believe you did a good job and offer the tool for a fair price (considering what it can and the free don't).