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Desktop apps
Flat
Metro UI Dock
Grooveshark
DodgerBlue
512x512
Social media
Smooth
Modern Web Social Icons
Orange
256x256
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Glyph
Social Media Stamps
Grooveshark, base
DarkSlateGray
94x94
Music & multimedia
Social + Tabs Color: Free
WhiteSmoke
40x40
Pixel
WPZOOM Social Networking Icon Set
DarkOrange
38x38
Grooveshark and Twitter replacement
Cartoon
Social Puzzle
128x128
64x64
Macchiato
Grooveshark, Ye
20x20
32 Pixel Social Media Icons
Lavender
32x32