Riyaz

WP Tweetbox adds a manual tweetbox with Twitter-style editor at the end of posts and pages.
Features:
<ul>
<li>Tweets branded to your website</li>
<li>Fully Customizable Tweetbox</li>
<li>Tweet text can be auto-generated</li>
<li>You can specify a custom Tweet text for individual posts/pages</li>
<li>Tweetbox can be disabled on individual posts/pages</li>
<li>Supports Su.pr, Bit.ly, Bitly.pro, Wp.me URL shorteners</li>
<li>You can use a WordPress short URL with post ID or long permalink URL as well</li>
</ul>

WP Tweetbox

WP Tweetbox adds a highly customizable Tweetbox at the end of blog posts and pages. Tweets are branded with your own website URL.

WPManiax

This social share bar mimics mashable.com social share bar. It’s collapsible and contains big Ajax powered counter that counts overall shares for your posts/pages.
Jumbo Share is super easy to install and configure.
It supports most popular social networks and is fully responsive.
More <a href="http://www.wpmaniax.com/jumbo-share/" rel="nofollow ugc">Screenshots and Live Sample</a> you can see on plugins’ home page.
Main Features:
<ul>
<li>Easy to install and configure</li>
<li>Most popular social networks supported (Facebook, Twitter, Google Plus, LinkedIn, Reddit )</li>
<li>Fully responsive</li>
<li>Show before/after content or both</li>
<li>Shortcode available to place the jumbo share bar inside your posts/pages</li>
<li>Configure where to show (posts, pages, home, archives)</li>
<li>Ajax powered counter means your site won’t slow down.</li>
<li>Ability to completely disable counter</li>
<li>Configure counter color</li>
<li>Cache results to speed up the counter (5 minutes – 24 hours)</li>
<li>Ability to purge cache manually</li>
<li>Nice and elegant design</li>
</ul>
<h3>Feedback</h3>
http://www.wpmaniax.com/jumbo-share/

Jumbo Share

Add Mashable.com like social share bar to your web site.

WP Tweetbox vs Jumbo Share