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Desktop apps
Flat
Metro UI Dock
twitter
LightSkyBlue
512x512
DarkTurquoise
Smooth
48px icons
DeepSkyBlue
48x48
Farm-fresh
SkyBlue
32x32
Black
3D
Social store
twitter, Shop
DarkGray
Handdrawn
Web Cartoon
Cartoon
Artcore
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Isometrica Social Icons
105x105
Astra
59x60
Peru
twitter, twitterrific
OliveDrab
iDroid
Pixel
Webset Icons
twitter, Animal, tweet
2experts free icons set
DarkSlateGray
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Social and web icons
64x64
Polaroid
LightBlue
62x78
Web 2.0 Origami
Animal, Blue, bird
100x100
250x250
bird, Blue, twitter
40x40
Chrome
70x70