Reunimos aqui um guia com os melhores sites de ícones gratuitos da internet para você.
Guarde este endereço pois com certeza um dia será útil.
São mais de 30 links úteis quando o assunto é ícones.

http://www.intersmash.com/300images/
http://www.designmeltdown.com/chapters/Badges/
http://www.stylegala.com/features/bulletmadness/
http://www.cool-web.de/galerie/icon/uebersicht.htm
http://www.el73.be/drunkey-love/downloads/
http://www.codehaus.org/~bwalding/eclipse-icons/
http://www.famfamfam.com/lab/icons/
http://feedicons.com/
http://www.graphicpush.com/index.php?s=icons
http://www.brandspankingnew.net/archive/2006/12/hohoho.html
http://www.iconaholic.com/downloads.html
http://www.iconarchive.com/http://www.iconspedia.com
http://linux.softpedia.com/get/Desktop-Environment/Icons/kNeu-5497.shtml
http://microformats.org/wiki/icons
http://office.microsoft.com/clipart/default.aspx?lc=de-de
http://www.brandspankingnew.net/archive/2005/06/free_mini_icons.html
http://www.web-toolbox.net/imagedownload/
http://ndesign-studio.com/resources/pixel_icons.htm
http://icon-king.com/?p=15
http://clipart.freedesktop.org/downloads/index.php
http://jimmac.musichall.cz/openoffice-icons.php
http://somerandomdude.net/srd-projects/clearbits
http://genoma.unsam.edu.ar/%7Efernan/web_safe.html
http://projects.sublink.ca/sweetie/
http://tango-project.org/Tango_Icon_Library
http://2pt3.com/news/twotone-icons-for-free/
http://www.vbarchiv.net/download/icons.php
http://utombox.com/2006/09/23/my-works/
http://www.pixelgraphix.de/log/2004-08/kleines-weblog-iconset.php
Ajax Load
http://www.napyfab.com/ajax-indicators/
http://mentalized.net/activity-indicators/
http://www.ajaxload.info/
Botões 80×15
http://gtmcknight.com/buttons/
http://kalsey.com/tools/buttonmaker/
http://www.lucazappa.com/brilliantMaker/buttonImage.php

Fonte: http://neosite.ilogic.com.br/dicas/2006/12/guia-com-melhores-sites-de-icones-grtis.html

Muito bom!
Ja não há falta de icones.. .

Muitas pessoas precisam, daí resolvi postar esses site.
Até mais.

Muito bom.. Bem util.

muito bom , so que os icons ta dificil achar um ke tenha todas as categorias ke preciso iguais =[

Excelente!