Sitemaps XML format - The way to tell search crawlers about the structure of your site. Yet another thing I'll need to implement. You literally have to have an entry for every single page, but you can build index sitemaps that point to other (nested) sitemaps. Without sitemaps I'm guessing your site isn't going to showup very often in search results. And you need a robots.txt file too. www.sitemaps.org #