Freie Icons im Internet.
Iconarchive
http://www.iconarchive.com/
Freie Icons
Icons bei Dr. Web
http://www.drweb.de/webgrafik/gratis-icons-buttons.shtml
Freie Icons
KDE look
http://www.kde-look.org/
Freie Icons
Multiart
http://www.multiart.nu/cci/
Freie Icons
Sourceforge Net Icon Collection
http://sourceforge.net/projects/icon-collection/
Freie Icons
Sun Archive
http://java.sun.com/products/jlf/ed2/book/Appendix.B.html
Freie Icons der Firma Sun