Feed Submissions
WordPress comes built-in with various feeds, allowing your site to be viewed by various feed readers. Many search engines are now accepting feed submissions, and there are many site which specialize in directories of feeds and feed services.
To submit your site’s feeds, you need to know the link to the various feeds your site provides. The article WordPress Feeds lists the various links of the feeds that come built into WordPress.
For information on customizing these links, see the article on Customizing Feeds.
Permalinks
Permalinks are enhancements to your existing URLs which can improve search engine optimization by presenting your post, page, and archive URLs as something like <nowiki>http://example.com/2003/05/23/my-cheese-sandwich/</nowiki> rather than <nowiki>http://example.com/index.php?p=423</nowiki>. See Using Permalinks for more information.
As search engines use links and the title as part of their information gathering, links to posts and articles within your site gain importance with Permalinks.
Sitemaps
A sitemap or “site map” is a single page listing of all the posts on your website. It is intended for your visitors to get a good overview on what your site is about and to find a blog post quickly but it also has great benefits in the search engines as a good link is always pointing to all your blog posts. By having a link to your sitemap on all your sites pages both visitors and search engines will easily get to it and find all your posts.
Here is a tutorial with three different examples of sitemaps with demos and how to set them up:
