Ruven

This plugin registers a widget to display links to your social networks. 
It uses font icons to display the links.
The following networks are supported:
<ul>
<li>Dribbble</li>
<li>Facebook</li>
<li>Flickr</li>
<li>GitHub</li>
<li>Google+</li>
<li>Instagram</li>
<li>LinkedIn</li>
<li>Pinterest</li>
<li>RSS</li>
<li>StumbleUpon</li>
<li>Tumblr</li>
<li>Twitter</li>
<li>Vimeo</li>
<li>YouTube</li>
</ul>

Ruven Themes: Social Widget

RT Social Widget adds a widget to display links to your social networks.

Vijayakumar Selvaraj

This plugin is the most efficient way to integrate the important social like buttons like Twitter, Facebook, Flickr, YouTube, Google+, Linkedin, Pinterest, Instagram and RSS inline.
<ul>
<li>Automatically display the social share buttons in widgets.</li>
</ul>

Follow us on widget

This plugin is the most efficient way to integrate the important social media links in your blog/website through widget.

Ruven Themes: Social Widget vs Follow us on widget