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
Computer & hardware
Strabo
Bubble, speech
YellowGreen
UI
Windows 8 Pack (Metro Style)
speech, Bubble
DarkSlateGray
26x26
Mixed
Led Icons
speech, Comment, Bubble