It seems like every website has social media buttons on them now. The ones leading the pack of late seem to be Twitter, Google +1 and the Facebook Like widget. This introduces one problem: loading times. Your pages are calling JavaScript files hosted on remote servers, bogging them down a bit.
Joost de Valk has put together a good tutorial on how to fix that issue. It features code snippets that will load the widget JavaScript asynchronously, keeping the buttons from holding up the page loading. Also, it even adds Google Analytics and Clicky tracking so you can tell if people are actually using your buttons.
When Google released +1, I quickly identified how to track interaction with that button. The obvious “follow up” was questions from people on how to track interaction with other buttons. Not for each of these social buttons tracking of interaction is actually possible. It depends on how the button was designed whether this will work or not. I got it working for Twitter and Facebook, so I’ll share the code for tracking interaction with their respective social buttons below.
Social Buttons: Adding them to your site & Tracking them [Yoast]