Icon Packs
You can also browse and search through all packs at the same time
Nuvola
Tons of large icons with the LGPL license (meaning you can use it), ranging in sized from 16x16 to 128x128 pixels
Crystal Project Icons
More large icons with the LGPL license (meaning you can use it), ranging from 16x16 to 128x128
Silk Pack
A set of 1000 icons by Mark James under the Creative Commons Attribution 2.5 License
Mint Pack
A minty flavored pack by Mark James with the Creative Commons Attribution 2.5 License
Mini Pack
Yet another pack by Mark James
Flag Pack
247 flag icons in gif and png format representing most countries in the world by Mark James
Twotone
A bunch of nice square two color icons, unlicensed
Milk and Green
Drunkey Love
File Icons
A bunch of icons to represent different file types.
