Free Iconsets

Icojoy: http://www.icojoy.com/articles/44/

Others from coursera.org

• One-bit Iconset by Icojoy - Free for Commercial Use.
• GNOME Iconset - Licensed under the GPL
• IconFinder Pixel Iconset by IconFinder - Licensed under CC Attribution 2.5 Denmark
• Hypic Iconset by Shlyapnikov - Licensed under the CC Attribution 3.0 Unported License
• Futurosoft Iconset by Sergio Sanchez Lopez - Licensed under the GPL