In my tutorials that instruct you how to make your blog friendly to search engines  in general, and to the Google spider  specifically, the meta tag is a key element.   The meta tags are very versatile code that should be located immediately following the blog title, in the blog header.  You'll be using the Template Editor  to view, and to modify, this code.  As always, if you intend to make changes to the code, backup the template  before and after making changes.  
What Blogger won't tell you