Socicon: A simple to use, (currently) one size, set of social network icons for your website.
To use simply add your social-icons.css and social-icons.jpg files to your css directory. Then in your HTML document add your link. Here's an example for Twitter:
In your head tags add <link rel="stylesheet" href="css/social-icons.css">
Then in your body wherever you want your icon to be add: <a href="https://twitter.com"><span class="socicon socicon-twitter"></span></a>
Check out a live example at: http://mikerosenberger.com