Function Icon Set is a set of 128 glossy Icons Included some of the main Social Media Icons such as: Design Float, Digg, Delicious, Furl, Technorati, Flickr, Stumble Upon, Twitter and etc. They are only available in 48×48px. All of them are free, you can use them anywhere you like.

Function Icons Set

Requirements: -
Demo: http://wefunction.com/2008/07/function-free-icon-set/
License: License Free