What is "XML sitemap"?
By placing a formatted xml file with site map on your webserver, you enable Search Engine crawlers (like Google) to find out what pages are present and which have recently changed, and to crawl your site accordingly.
XML-Sitemaps.Com
Build your Site Map online (XML, ROR, Text, HTML)
This website is to let you:
* Create an XML sitemap format that can be submitted to Google to help them crawl your website better.
* Create a Text sitemap to submit to Yahoo.
* Create a ROR sitemap, which is an independant XML format for any search engine.
* Generate an HTML site map to allow human visitors to easily navigate on your site.
http://www.xml-sitemaps.com/