PNG SVG MORE
Social media
Glyph
Social Glyph
ok, Odnoklassniki
Black
480x480
PNG ICO ICNS MORE
UI
Windows 8 metro style
ok
DarkSlateGray
512x512
PNG ICO ICNS SVG MORE
Travel & hotels
Meanicons
meanicons, ok, okay
PNG MORE
Mobile apps
Free Retina Icon Set
ok, Face, pleasure
60x60
Business & finance
24x24 Free Application Icons
LimeGreen
24x24
Free Mobile Icon Kit
ok, smile
64x64
Mixed
Flat UI Icons Free
yes, Check, checkmark
Check, Accept, yes
Windows 8 icons
26x26
Retina Display Icons
Check, Accept, Comment
Silver
Desktop apps
16x16 Free Toolbar Icons
ok, tick, Blue
DodgerBlue
16x16
Glyph set
yes, ok, Check
160x160