PNG MORE
Business & finance
Pixel
24x24 Free Pixel Icons
Chat, messages, Messenger
SteelBlue
24x24
forum, Social, talk
Black
Messenger, Message, Chat
PNG ICO ICNS MORE
Network & communications
16x16 Free Application Icons
speech, Message, Messenger
16x16
Chat, Message, messages
CornflowerBlue
Mixed
IconSweets 2
group, Users, people
40x40
UI
Tiny IM Icons
Users, group, forum
DarkSlateGray
Gnome icons
forum, friends, people
48x48
Tango
forum, system, Users
32x32
DRF
Users, forum
Silk
friends, group, Users
Sienna