Gorgeous, vector, zoomable, Retina-ready, and customisable social media buttons using Bootstrap and Font Awesome. Oh, and they're free too!
Download social-buttons-3.css (v1.0.0, 20kb raw)is just 1 line of HTML code:
<button class="btn btn-facebook"><i class="fa fa-facebook"></i> | Connect with Facebook</button>
Full instructions can be found here, but basically:
Made with by @noizwaves.
Code licensed under Apache License v2.0.