Matthew Horne

Adds social media below your wordpress posts with defered Javascript for improved performance. 
Includes Twitter, Facebook like, google plus and Digg. This plugin adds the javascript to the bottom of the page and combined in to a single script. 
Styling included within the code so no extra CSS. The plugin is designed to be light and minimal and yet provide you with the same results as other social media plugins.

Social Media with defered Javascript

Adds Facebook Like, Twitter button, Google +1 and Digg button below posts.The javascript is defered so to improve performance on your site.

WPManiax

This plugin ads Metro style social share widget to your sidebar.
5 most popular social networks supported.
Metro Share Widget is super easy to install and configure.
More <a href="http://www.wpmaniax.com/metro-share-widget/" 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>Configure where to show (posts, pages, home)</li>
<li>Metro style elegant design</li>
</ul>
<h3>Feedback</h3>
http://www.wpmaniax.com/metro-share-widget/

Metro Share Widget

Add Metro style social share widget to your sidebar. 5 most popular social networks supported

Social Media with defered Javascript vs Metro Share Widget