Blog owners and owners of news sites like to keep their readers engaged. That is, they try to keep the user focused on the content, so they do not leave the site.
Many blogs make use of an infinite scroll effect, to display posts and articles (custom post types) on their WordPress sites. This technique is used to generate clicks from the reader. It resembles the feed of all known social networks, maybe that is the reason why it is so popular.
The Ajax Load More plugin for WordPress provides this functionality. You can then enhance it to your liking, through the configuration options available.
Keep reading to learn how to use this plugin!