PNG ICO ICNS SVG MORE
Desktop apps
Flat
Socicons #3
social media, Indaba, Logo
SteelBlue
512x512
Social, social media, media
square, media, social media
Flixster, Social, social media
media, Logo, square
Smallicons: logotypes
socialnetwork, Instagram
Social media
Micon Social Pack
Camera, photo, Instagram
Four, square, Foursquare
Cloud, Cloudapp, upload
SEO & web
Flat Bed Social
Back, charts, Vimeo
iconsimple: logotypes
web, social media, Communication
Mobile apps
China’s Social Share Icons
qq, China, tencent
zhihu, chinese, China
WinDev Contacts - free
social network, Connection, Connections
Funky - free
Delicious
Facebook
Friendfeed