PNG ICO ICNS MORE
Social media
3D
Social Network and media
Social, socialpack, ubercons
LightGreen
512x512
Signs & symbols
Free 3d Glossy Interface Icon Set
power, switch, glossy
64x64
PNG MORE
Desktop apps
Free Applications Icons
i like, Like, Hand
24x24
Business & finance
SEM Labs
user, grey
48x48
Features, grey, Alien