Google today has added a new "feature". From their new pages...
What is Google Sitemaps?
Google Sitemaps is an experiment in web crawling. Using Sitemaps to inform and direct our crawlers, we hope to expand our coverage of the web and improve the time to inclusion in our index. 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:
1. Generate a Sitemap in the correct format using Sitemap Generator.
2. Update your Sitemap when you make changes to your site.
Some of it is beyond my understanding but I am sure some of you will understand it.
Here is the link: https://www.google.com/webmasters/sitemaps/...s/en/about.html
Good Luck, youneverknow