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Social media
Smooth
YOOicons Social Bookmarks
twitter
SkyBlue
512x512
Desktop apps
Shine
thing, Cloud, shine
128x128
Mobile apps
iCandies
button, 54, weather
64x64
60, button, weather
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Social and Web Icons v2
Reddit
46x46
UI
Stuttgart
Full, time
32x32
WPZOOM Social Networking Icon Set
Tuenti
Project icons
twitter, Balloon
Files & folders
Spirit20
Floppy
20x20
Mixed
Bunch of Bluish Icons
Calendar
Calendar, recycle
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MicrOS
Cd
Vector Social Media Icons
Skype, voip
Vimeo
Education & science
Basic Set 2
Chat, Bubble, talk
card, payment, credit
movie, video
Addictive Flavour
beta, splash, lightblue
48x48
splash, new, lightblue
web, Blue
WG Social Media Icons
Designfloat
Business & finance
Primo
Folder
Folder, Add
Block, Folder