PNG ICO ICNS SVG MORE
Signs & symbols
Smooth
Social Flat Rounded Rects
Stumble upon, Stumbleupon
OrangeRed
512x512
Social Flat Dual Vertical
Stumbleupon
Social Flat Buttons
search, web-pages, Blogging
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Social media
Soshions
500x500
Social Network - Hexagonal
Stumbleupon, social network
Qvoppies
32x32