mitchbartlett

By simply dragging this widget into your sidebar or any widgetized area, you can easily place icon links to your various social profiles. Display icons in 1 of 3 different sizes and 1 of 4 different styles. Here is a list of icons you will find with this plugin:
<ul>
<li>Twitter</li>
<li>Facebook</li>
<li>LinkedIn</li>
<li>YouTube</li>
<li>Flickr</li>
<li>Pinterest</li>
<li>StumbleUpon</li>
<li>Google Plus</li>
<li>Instagram</li>
<li>Tumblr</li>
<li>Vine</li>
<li>WordPress</li>
<li>RSS</li>
</ul>

Yet Another Social Media Icon Plugin (YASIP)

By simply dragging this widget into your sidebar or any widgetized area, you can easily place icon links to your various social profiles.

telepathy

kynatro

A simple, easy to use, easy to configure social bar that will allow a user to add social share links to their WordPress website. This plugin came from the idea implemented with the popular Share Bar plugin (https://wordpress.org/extend/plugins/sharebar/), but offers many improvements:
<ul>
<li>Completely new, easier to understand code base making it easier for possible community contribution and personal customization</li>
<li>No additional database tables, but instead utilizes a private custom post type for social link buttons</li>
<li>Better control over where the bar appears allowing for per-post type filtering</li>
<li>Less obtrusive implementation for better caching and minification plugin compatibility as well as control over when the plugin is loaded</li>
<li>Simpler administrative interface with drag and drop ordering capabilities</li>
</ul>
Works in IE7+, Firefox 2+, Chrome 2+, Safari 3+ and Opera 9+; vertical following does not work in IE6. Utilizes jQuery for JavaScript processing, although it is setup to work properly with other libraries, your experience may vary. Requires PHP 5.2+.
This plugin is free to use and is not actively supported by the author, but will be monitored for serious bugs that may need correcting.

Simple Social Bar

A simple, easy to use, easy to configure social share bar that follows you down the page for sharing your posts.

Yet Another Social Media Icon Plugin (YASIP) vs Simple Social Bar