The Noun Project collects, organizes and adds to the highly recognizable symbols that form the world's visual language, so we may share them in a fun and meaningful way.
aims to create an archive of clip art that can be used for free for any use All graphics submitted to the project should be placed into the Public Domain according to the statement by the Creative Commons.
freeware icon editor. It is an all-in-one solution for icon creation, extraction and editing. It is designed to work with Windows XP, Windows Vista and Macintosh icons supporting transparency.
Silk” is a smooth, free icon set, containing over 700 16-by-16 pixel icons in strokably-soft PNG format. Containing a large variety of icons, you're sure to find something that tickles your fancy. And all for a low low price of $0.00. You can't say fairer than that.
A while ago I created a lot of icons for web applications I designed while working for the most excellent employer there is: Manentia Software. Now, we decided to liberate them with a Creative Commons license for everyone to use and enjoy!