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Social media
Pixel
Social Icons
Stumbleupon
SteelBlue
16x16
Mighty Social Icons
MediumSeaGreen
32x32
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Mixed
IconSweets 2
Laptop, Stumbleupon, Computer
Black
40x40
Classy Social Media Icons
LightSeaGreen
Desktop apps
Webset Icons
ForestGreen
48x48
Social Networking
Dead simple
RoyalBlue
15x15