Google has a new tool for website developers. It’s still in beta phase, so it can still be tricky to use. This is what Google says about their new service:
Google Sitemaps is an easy way for you to help improve your coverage in the Google index. It’s a collaborative crawling system that enables you to communicate directly with Google to keep us informed of all your web pages, and when you make changes to these pages.
Couple of days ago I installed this WordPress plugin: google-sitemaps-generator-v2-final
It automatically publishes an updated XML feed with every posting.