Our blog is loading a paginated data-source for its content. This is efficient from an API performance point of view, but our users will not be able to read more than the first page of blog posts. We will need to pass along a pageToken parameter to the Blogger API so that we can request the next page of blog posts. Let's add a More Posts button to the bottom of our blog post list page that will request the next page of posts, as well as every sequential page after that the user wants to view.