PNG ICO ICNS MORE
Social media
Pixel
Social Icons
twitter
MediumTurquoise
16x16
PNG MORE
Mixed
Simply 8-bits #12
96x96
Network & communications
16x16 Free Application Icons
internet, Social, twitter
Black
Desktop apps
Seize
DarkOliveGreen
Sports & awards
32px Rounded
Teal
32x32
Family & home
IconBeast Lite
30x30
UI
Bijou
20x20
Mighty Social Icons
Computer & hardware
Strabo
24x24
Windows 8 Pack (Metro Style)
DarkSlateGray
26x26
WPZOOM Social Networking Icon Set
LightSkyBlue
38x38
Frankfurt
twitter, Orange, Rss
DarkOrange
Avatars & smileys
Hamburg
Turquoise
IconSweets 2
medion, bird, twitter
40x40
bird, twitter
Fugue Icons
balloons, twitter, Box
SaddleBrown
Mobile apps
iPhone Sidebar icons
YellowGreen
SkyBlue
Macchiato
twitter, Ml
Sketchdock Ecommerce Icons
ok, Blue, tick
RoyalBlue
Cologne
Munich