After understanding what are sitemaps & importance of sitemaps for SEO of your site it is now required to go for the first step, submitting sitemaps to google webmasters & tell google search engine crawlers, your websites links structure.
Submitting the Sitemaps of your (Blogger) blog to Google Webmaster helps the search engine(Google) to crawl your webpages easily and more quickly! This post explains the procedure to add your blogger blog’s sitemap to the Google Webmaster Tools.
Adding Blogger Sitemaps to Google Webmasters
 Sign-in to Google Webmaster Dashboard using your Google Account.
 Type your blog URL and click Add Site
 Once your site is added to Google Webmaster, you need to verify the site by adding a Meta Tag to your blog
 Copy the Meta Tag code given by Google Webmaster
 Now go to Blogger Dashboard – Layout – Edit HTML – then search(Ctrl+F) for the code given below in the header section:
<b:include data=”blog” name=”all-head-content”/>
 Then Paste the Meta Tag just after the above code and Save the Template
 Now click Verify in the Google Webmaster Tools. Your site will be verified if you followed the above steps clearly
 Next step is to add sitemaps of your blog. Select Sitemap from the left sidebar in the Webmaster tools
 You can add the following sitemaps of your blogger blog to the Google Webmaster: (Addonly the RED part of the URL given below)
 Finished! Your Blog’s sitemap will be added to Google now!
Visit our Complete SEO Success Guide for Bloggers section for more SEO tips & tools.