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Social media
Flat
Metro UI Dock
gmail
Crimson
512x512
d, Wifi
2409
Meebo
nero
birds, Angry
Minimalist Social Media Icons
pinterest
256x256
youtube
Somacro social media icons
Lastfm
500x500
Google +1 icons
plus, +1, Google+
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Social sticker set
youtube, sticker
64x64