PNG ICO ICNS MORE
Desktop apps
Glyph
16x16 Free Toolbar Icons
yellow, Face, Emoticon
Khaki
16x16
Computer & hardware
Smooth
Systematrix
Epic, lol, Face
128x128
3D
Human o2
smiley, Face, happy
Mixed
August
smiley, happy
32x32
really, happy, smiley
Avatars & smileys
Lin
Face, smiley, smile
Photography & graphic design
Dark Glass
Emoticon, smiley, good
PNG MORE
Network & communications
Oxygen
Face, happy, sleep
22x22
UI
Pixel
Silk
Emoticon, smiley, evilgrin
smiley, happy, Emoticon
happy, Emoticon, smiley
Emoticon, smiley, wink