Engramium

Enables Facebook, Twitter and Email Share Button on Posts
<h3>Features</h3>
<ul>
<li>No Extra Settings/Configuration.</li>
<li>Lightweight.</li>
<li>Easy to use.</li>
</ul>
** Social Share Button **
<ul>
<li>Facebook</li>
<li>Twitter</li>
<li>Email</li>
</ul>

Socioscope

Enables Facebook, Twitter and Email Share Button on Posts

DEJAN

This WordPress plugin will work as part of wp-admin and report on correlation between word count and social shares. The objective is to determine optimal post length to ensure most social shares.
Social Platform:
<ul>
<li>
Twitter
</li>
<li>
Google+
</li>
<li>
Facebook
</li>
<li>
LinkedIn
</li>
</ul>
Features:
<ul>
<li>
CSV Export
</li>
<li>
Display Diagram
</li>
<li>
Limit report by date range
</li>
<li>
Total words on the blog (or date range)
</li>
<li>
Individual post word count (sortable table of posts, word counts, social shares)
</li>
<li>
Average post length
</li>
</ul>

Word Count and Social Shares

This Wordpress plugin will work as part of wp-admin and report on correlation between word count and social shares.

Socioscope vs Word Count and Social Shares