New feature from Google. “Beta”, of course.
By placing a Sitemap-formatted file on your webserver, you enable our crawlers to find out what pages are present and which have recently changed, and to crawl your site accordingly.
Basically, the two steps to participating in Google Sitemaps are:
- Generate a Sitemap in the correct format using Sitemap Generator.
- Update your Sitemap when you make changes to your site.