Curtiss Grymala

Adds an available widget to list various social media profiles. The following social media sites are included by default:
<ul>
<li>Facebook</li>
<li>Twitter</li>
<li>YouTube</li>
<li>LinkedIn</li>
<li>Google+</li>
<li>FriendFeed</li>
<li>Flickr</li>
</ul>
This plugin also includes a filter hook allowing you to extend the available services.
By default, this plugin outputs an unordered list (ul) with a class of <code>social-icons-list</code>. Each service is output as a list item (li) with the service name used as the HTML class attribute. Filters are available to allow you to change those HTML elements.

Social Icons Widget

A developer-friendly plugin that allows you to add a widget with links to various social media profiles.

Jesse Overright

Add Facebook and Twitter sharing for your blog posts and pages! Sharing your blog posts with Social Media Sharing automatically provides important details like featured images, title, and description to your blog so pages and posts look fantastic on Facebook or Twitter. Social Media Sharing adds Facebook Open Graph metadata and Twitter Card support to every page on your site, support for default descriptions or photos, and uses your featured images as thumbnails on social media.
Note: Twitter Card support requires approval from twitter. You can request approval at the <a href="https://dev.twitter.com/docs/cards/validation/validator" rel="nofollow ugc">twitter card validator</a>.

Social Media Sharing

Automatically add Facebook Open Graph and Twitter Card support to your WordPress website.

Social Icons Widget vs Social Media Sharing