HubSpot provides you a set of tools for inbound marketing. This tutorial is HubSpot users, they can easily integrate HubSpot in their WordPress sites and enable analytics and other cool features by adding their Hub ID and App Domain.
Author box plugins expands user profile page by adding social media fields and makes it easier for readers to follow author on social media networks. Here is a list of top 5 WordPress plugins for displaying Author Box after posts, pages, widget areas etc wherever you like. If you only want to add a perfect cool author box after your posts then try Fancier Author Box by ThematoSoup or read this tutorial for knowing about more plugins providing different types of customization.