Learn how to generate a complete sitemap of your Blogger blog using an online sitemap generator and submit the XML sitemap to Google via robots.txt.
You may prevent search engines from indexing your XML sitemaps with the help of x-robots-tag set to noindex.
You can easily generate a Sitemaps.org compliant Image Sitemap (XML) for your website as long as its powered by WordPress.
Create a Video Sitemap (XML) and add it to Google Webmaster tools to improve the performance of your site in video search results.
You may call it the index page or table of contents for your site but Sitemaps are probably the most important tool to help search engines discover your internal web pages.
What URLs should you put in the XML sitemap of your website / blog? All pages or just the important pages or pages that have not been crawled or indexed yet by search engine spiders.