Dor Zuberi

A cool utility which helps you to track how many people shared your posts on Facebook, Twitter, LinkedIn and Google Plus.
For further information, please visit the official plugin site: <a href="http://www.zuberi.me/2011/socialist-tracking-your-social-reach.html" title="Official site" rel="nofollow ugc">Socialist – Tracking your Social Reach | Three Dots</a>.

Socialist – Tracking your Social Reach

A cool utility which helps you to track how many people shared your posts on Facebook, Twitter, LinkedIn and Google Plus.

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...

Socialist – Tracking your Social Reach vs Easy Social Share