Social-buttons-widget-wp is a project mainly written in PHP, it's free.
A WordPress sidebar widget that creates Twitter, Facebook, and LinkedIn buttons.
This is a really simple, "Hello World"-style wordpress widget. It creates a sidebar widget with Twitter, Facebook, and LinkedIn buttons.
Icons should be downloaded from here and extracted into your theme's images folder. If none exists, create one.
Copy the widgets-social-buttons.php file into your theme's "functions" folder. If none exists, create one.
Open your theme's functions.php file. Add the following snippet:
// Add the Social Buttons Widget
include("functions/widget-social-buttons.php");
This has been tested successfully on the Premium Pixels theme.