Zocial CSS social buttons
I basically rewrote this entire set so they are full vector buttons, meaning:
  - @font-face icons
 
  - custom font file for all social icons
 
  - icon font use private unicode spaces for accessibility
 
  - em sizing based on button font-size
 
  - support for about 83 different services
 
  - buttons and icons supported
 
  - no raster images (sweet)
 
  - works splendidly on any browser supporting @font-face
 
  - CSS3 degrades gracefully in IE8 and below etc.
 
  - also includes generic icon-less primary and secondary buttons
 
<button class='zocial facebook'>Button label here</button>
 
or
<a class="zocial twitter'>Button label</a>
 
  - Can be any element e.g. 
a, div, button etc. 
  - Add class of 
.zocial 
  - Add class for name of service e.g. 
.dropbox, .twitter, .github 
  - Done :-)
 
Check out zocial.smcllns.com for demo and code examples.
Problems, questions or requests to @smcllns