Google Sitemaps enables Webmasters to Directly Alert Google to Changes and Additions on a Website and that’s just one of 7 Benefits.
Telling search engines about new pages or new websites use to be what the submission process was all about. But major search engines stopped using that process a long time ago.
Google has for a long time depended on external links from pages they already know about in order to find new websites.
For webmasters and website owners Google Sitemaps is the most important development since RSS or Blog and Ping, to hit the Internet.
Using RSS and Blog and Ping enabled webmasters to alert the search engines to new additions to their web pages even though that was not the primary purpose of these systems.
If you’ve ever waited weeks or months to get your web pages found and indexed you’ll know how excited we webmasters get when someone discovers a new way to get your web pages found quicker.