40 New Dribbble Freebies Published in 2012 - Web Design Ledger
Buy Social Network Icons by wpthms on GraphicRiver. - 20 Social Network icons in 5 color styles (bonus black and white color) - vector shape and full scalable, easy.
Slender Glyphs: Social Network Icon Set by AnnaLitviniuk Slender Glyphs is a set of thin and elegant vector photoshop icons made in 100 shape layers with original size of 2020 pixels.
Social Media Icons via Fox