The Fast Icon today released “Social Bookmark Icons,” a collection of 12 freeware icons. The icon set, designed in iPhone-like style, includes icons for Blinklist, BlogMarks, Delicious, Digg, Feeds, Flickr, Furl, Magnolia, Newsvine, Reddit, Stumbleupon and Technorati. All icons are sized from 512X512 to 16X16 pixels and are available for download as standard Mac or Windows icons as well as a PNG files for Linux, Web or blogs.