insivia

Providing the ability to manage how social media sites see your blog or website. Manage your facebook sharing image, update twitter status for multiple accounts and view your digg submissions. Also can post your new blogs to multiple twitter accounts when you publish a new post. More coming soon.
<a href="http://www.insivia.com/wordpress-social-media-manager" rel="nofollow ugc">Social Media Manager</a> built by <a href="http://www.insivia.com" rel="nofollow ugc">Insivia Marketing & Interactive Web Design</a>

Social Media Manager

Providing the ability to manage how social media sites see your blog or website. Manage your facebook sharing image, update twitter status for multipl …

Bloafer

Use this plugin to apply <a href="https://wordpress.org/extend/plugins/share-rail/screenshots/" rel="ugc">floating shares</a> to your posts and pages.
This is very similar to the one found on mashable.com.

Share Rail

Use this plugin to apply floating shares to your posts and pages.

Social Media Manager vs Share Rail