Site maps, bascially, are just maps of your site.
See mine here.
Site maps are great for your readers to easily navigate your site.
But did you know that having a site map could (maybe?? darn that google) improve your SEO.
Site maps are the threads that guides those lil’ spiders on just where to go.
In fact, some sites have adapted to having two separate site maps; one for humans and another for search engines. And, fortunately, Google doesn’t penalized this as having duplicate content.
A much more detailed explanation on the importance of using site maps can be found on webconfs.com
Tags: duplicate content, Google, Google XML Sitemaps, Publishers, Search, Search Engine, search engine optimization, Search Engines, Searching, Site map, Sitemaps, Tools, Web search engine, WordPress, Yahoo