WPTD: Dagon Sitemap Generator

This plugin will let you generate a complete HTML sitemap instead of just an XML sitemap. This is a great plugin for two reasons.

Reason #1, it gives users a complete layout of your site (provided you set the options for that) so they can see what your entire site looks like.

Reason #2, for the smaller search engines that don’t yet use XML sitemaps, it will provide those spiders a roadmap of your site.

http://wordpress.org/extend/plugins/sitemap-generator/
http://www.dagondesign.com/articles/sitemap-generator-plugin-for-wordpress/