leanderlindahl

This plugin will create an authorbox widget that you can place in a sidebar. The widget displays the users gravatar, biographical info and icons linking to Facebook, Twitter, LinkedIn and Google Plus.
Edit the users profile page and provide the necessary information. The social media links should be full URL:s, i e 
http://www.facebook.com/joe-smith 
http://www.twitter.com/joe-smith

Social Author Box

Creates an "Author Box" Widget with the author's picture, bio and social media links.

Sajib Talukder

WPxon

Smart Author Box will show the author’s biography below articles. This is a responsive and clean designed author box at the end of your posts, which will display the author name, author gravatar and author description. It also allow to show the author social icon which values can be input from the wordpress user profile screen.

Smart Author Box

Smart Author Box will show the author's biography below articles.

Social Author Box vs Smart Author Box