by Rachel Baker on WordPress.org
widgets, social networks, performance Requires at least: 3.5 Tested up to: 3.9.1 Stable tag: 1.8.1 License: GPLv3 or later License URI: http://www.

Social Sharing widgets are loaded under posts
Simple social sharing plugin that loads the third-party scripts asynchronously
and after the page loads to improve site performance.
The plugin provides settings to load any of the following sharing widgets:
Available display options include ability to display the sharing widgets on
above or below content on pages, specific custom post types or blog and archive pages.
Why is Asynchronous script loading better?
Asynchronous loading allows multiple files to load parallel to each other.
Instead of having to wait for Twitter to respond with their script, the browser
moves on and starts fetching the next request.
Dependencies
Contributors Welcome
Upcoming Versions Wishlist
Credits
Author
async_social_display() function to be used as a template tag to outputFixed bug that would cause content in RSS feeds to not display.
Fixed bug where PHP Exception was thrown on pages if the display options were
not set.
async-share.js file. Now only the external social scripts that arefb-root div not being detected before script loaded.