PNG ICO ICNS MORE
Gaming & gambling
3D
Free Game Icons
Money, numbers, Abacus
DarkKhaki
64x64
Avatars & smileys
Free Large Boss Icon Set
Library, education, librarian
Black
512x512
Photography & graphic design
32x32 Free Design Icons
Book, learning, study
32x32
Desktop apps
Demo Professional Toolbar Icons
scan, search, research
Computer & hardware
Icons Unleashed Vol. 1 - Computer Hardware
learn, school, study
SaddleBrown
256x256
Business & finance
Sunny Day
study, Feasibility
400x400
Mixed
Stroke
Feasibility, study
Vista Style Base Software
bookmark, diary, Book