On June 2nd of this year, Google Inc. announced a new service, Google Sitemaps. Following this idea, webmasters now have the ability to create an xml document that maps site URL’s. Google will then read the sitemap .xml file on a regular basis, to extract all current content on the site.
The catch is that you need to generate this .xml file to Googles standard, which is provided in an .XSD file, here. Once the sitemap .xml file is built, move it to your web server, then go here and submit your sitemap to Google.
If you would wish to just have it generated for you. Go here.