This plugin will generate a special XML sitemap which will help search engines like Google, Bing, Yahoo and Ask.com to better index your blog. With such a sitemap, it’s much easier for the crawlers to see the complete structure of your site and retrieve it more efficiently. The plugin supports all kinds of WordPress generated pages as well as custom URLs. Additionally it notifies all major search engines every time you create a post about the new content.
Sitemaps are excellent idea to put on the root of your website to enable the search engines to properly index your websites. A properly written xml site map can enhance the chances that your website shall be highly ranked in search engines and all the web pages get indexed.