Mirco Babini

LinkedIn Perfect Share detects when LinkedIn is parsing/crawling the Open Graph tags of a post/page and provides a simplified version of the contents. This allows the scraper to see the correct sharing post’s data for the provided URL; the information includes the post title, the description and the Featured Image (that is the standard content for the WordPress’ og:image field).
Full description here: http://www.mircobabini.com/project/linkedin-perfect-share-plugin-for-wordpress/ 
Developed by Mirco Babini, WordPress Consultant, Web Developer and Data Lover.
<h4>Usage</h4>
It just works. You simply need to install and activate it.

LinkedIn Perfect Share

Provides precise Open Graph data to LinkedIn for perfect sharing

oneline

A Simple plugin which adds a widget to your wordpress admin widget area which you can then assign to the side bar etc… features are as follows:
Allows you to set your user / social ID’s 
Allows you to switch from icons or text links 
Allows you to turn social button / links on or off
Supported Social Sites:
Facebook 
Twitter 
Linkedin 
RSS

Easy Social Share

A Simple plugin which adds a widget to your wordpress admin widget area which you can then assign to the side bar etc...

LinkedIn Perfect Share vs Easy Social Share