Eugen Paun

redecs

Adds a simple author box with Gravatar image below the articles on single page. You can add Twitter and Facebook profiles.

Simple Author Box

Adds a simple author box below the articles on single page.

snowbedding

Adds an author box after your post contents, with Gravatar and social profile links. 
* More than 10 Social Profile supported 
* Set custom avartar image instead of registering Gravartar account. 
* Compatible with [WordPress SEO by Yoast] plugin. 
* WordPress 3.9 Ready!

Author Box After Posts

Adds an author box after your post contents, with Gravatar and social profile links.

Simple Author Box vs Author Box After Posts