Snowball is a WordPress plugin that serves as an additional editor inside your admin. Inside Snowball you can build longform articles that sit alongside the rest of the content on your site.
Have an idea for a special post with full-width images, pull quotes, and other enhanced features? Install Snowball and get to writing and building your article.
A powerful WordPress plugin that makes it possible for anyone to create immersive longform articles for the web
Source: Snowball | A powerful WordPress plugin for creating immersive longform articles for the web