Free Social Media Bookmarking Icon Set
Another freebie from DesignModo... as with the GUI Elements, you do need to tweet about this to get the download. But again, it's free stuff, so no biggie. Thanks for sharing this DesignModo. “Free Social Media Bookmarking Icon Set” is an icons set consisting of 38 individual icons of the popular social networks/bookmarking sites out there. The set consists of 38 high quality icons in transparency PNG format (64 x 64, 32 x 32).
Download it here: http://designmodo.com/free-social-media-icon-set/