title: Google sitemap files for Rails projects
body: <p>Is there an easy way to create a sitemaps file for Rails projects? Especially for dynamic sites (such as Stack Overflow for example) there should be a way to dynamically create a sitemaps file. What is the way to go in Ruby and/or Rails? </p>
  
  <p>What would you suggest? Is there any good gem out there?</p>