PNG MORE
UI
Glyph
iPhone Toolbar icons
lightbulb, Idea
Gray
26x26
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Desktop apps
Smooth
Sabre
Idea, Folder
Black
512x512
Mixed
Outline
Dortmund
Idea, lightbulb
DarkSlateGray
32x32
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3D
Gnome Web Icons
bulb, Idea, light
64x64
Bunch of Bluish Icons
group, Idea
Idea, user
Idea
Shine 7
light, Idea, bulb
400x400
Addictive Flavour
light, brainstorming, Idea
LemonChiffon
48x48
Brainstorm, brainstorming, Idea
DimGray
Business & finance
Seven General Icons
Light bulb, Idea
256x256
Sunny day General Icons
Stroke
bulb, light, Idea
Developer Kit
128x128
Network & communications
BeOS
jabber, lightbulb, Idea
Handdrawn
Web Design Creatives
Idea, light, bulb
Free Applications Icons
Electric, shock, Energy
24x24
Music & multimedia
Soft Icons
tips, bulb, light
SandyBrown
Computer & hardware
Human o2
Idea, lamp, light
light, bulb, Idea
DarkGray
Idea, Light bulb, tip
Khaki
lightbulb, Idea, power
One bit
Idea, bulb, light
Goldenrod