PNG ICO ICNS MORE
Social media
Pixel
Mighty Social Icons
Tumblr
DarkSlateGray
32x32
Smooth
Modern Web Social Icons
google plus one, google, plus one
256x256
Deviantart
dribbble
Forrst
Wordpress, Blogging
iCloud Style Icons
Apple
512x512
Msn
Rss, google +
Skype
twitter
Wp
xbox, Live
youtube
yahoo
PNG MORE
Pinterest icons
pinterest
114x114
64x64
Glyph
Social Media Stamps
adobe, kuler, base
94x94
App, Social, valentines
credit, base, Bebo
base, Behance, pleasant