PNG ICO ICNS MORE
Desktop apps
Smooth
Icons Mega Pack 1 and 2
math, Openoffice
LightSteelBlue
256x256
PNG MORE
Computer & hardware
Crystal Project
insert, stock, math
WhiteSmoke
24x24
stock, insert, Object
16x16
Farm-fresh
pi, math
Black
32x32
Mobile apps
iCandies
button, desk, 47
DarkSlateGray
64x64
Avatars & smileys
Picnic
Einstein, math, calculator
MediumOrchid
70x70
Business & finance
Beta
calculator, math
Dusk
math, calculator
59x60
Pretty Office
Music & multimedia
Soft Icons
Black board, math, school
SeaGreen
128x128
Sleek XP: Software
office, open, math
Calc, math, calculator
20, math, Openofficeorg
Network & communications
Oxygen
Blackboard, calculate, school
DarkSeaGreen
math, File
KDE Crystal Diamond
math, Epsilon
math
22x22