PNG ICO ICNS SVG MORE
Social media
Glyph
Iconano - Social
twitter
Black
512x512
Desktop apps
Peelicons vol 1
social media, twitter
Metro Contact - free
bird, twitter, Connect
Short, online, twit
ICONÆ - Flat Icon set - free
socialnetwork, twitter, Social
PNG ICO ICNS MORE
Social Web
Social, Circle, twitter
128x128
Computer & hardware
Ionicons
twitter, Social
Social, twitter
Mixed
WPZOOM Developer Icon Set
Unicons - Vector Icons Pack - free
Minicons Social
PNG MORE
Mobile apps
Free Retina Icon Set
tweet, Logo, social media
60x60
Social, social media, twitter
Business & finance
24x24 Free Application Icons
24x24
Black 48x48 Icons - free
tweets, Like, smo
48x48
social media, twitter, Social
Win8 and iOS Tab Bar Icons - free
twitter, bird, share
App Tab Bar Icons for iPhone - free
Social, twit, twitter
Simple Icons
4096x4096
Devine Icons Part 2