If you are into SEO and aren’t using sitemaps yet then lean forward and choke yourself! Sitemaps are an easy way to inform search engines of the links on your site. Google, Yahoo, MSN, and Ask.com all support the sitemap protocol. Each search engine also offers a way to automatically ping their server to tell them your sitemap is up to date. The engines will come crawl your sitemap feed and index your new links much faster than the normal way. Here is my current list of ping servers I submit my sitemap to:
#GOOGLE SITEMAP UPDATES
#YAHOO SITEMAP UPDATES
#ASK.COM SITEMAP UPDATES
#MSN.COM SITEMAP UPDATES via MOREOVER
Just setup your sitemap and run this as a nightly job. Easy as pie!