Free Web icons – An Enormous list
If you don’t have the skills or the time to create original icons for your website you can find plenty on the web. iconfinder is a search engine to search for icons. Two other icon search sites are www.iconlook.com and iconlet.com
Damian Johnson has compiled a great list of icon archives including all the licensing information, dimensions, formats and preview images. 
Link
This site allows you to download a set of 140 free icons available in 4 different sizes
If you are interested in ASP.net icons you will find 300 free icons at this site. 
Link
Mouserunner also has a huge collection of free icons organized by category 
A great collection of icons from from dryicons.com
A collection of 700 free mini web icons from FAMFAM FAM
Free greyscale icons.
400 free icons in PNG format
Free glass icons
Vista icons from Jm Art Studio
Crystal Clear Collection
128 Free icons – Function
Scratch style icons
Link
1000 Free Icons from FatCow
Link
130 Iphone Icons
And finally, a few web icon tutorials.
Tutorial on creating Vista and Aqua buttons
Tutorial on how to create Windows Vista buttons. 
Link
43 Comments
David Keech on June 19th, 2008
It’s probably worth knowing where some of these icons come from. I spotted the official logos of Gnome, KDE, Debian, RedHat and The Gimp all in the very first set.
It might make sense if your website is about Linux but you’re going to look a little bit like a fool if you use these icons on a non-Linux related website.
singapore web hosting on June 26th, 2008
great collection! useful for me to use it for my own web site.
Tech Cow on June 27th, 2008
Very nice icons. bookmarking this page now. Will get back to it when a get a chance
Doug on July 2nd, 2008
I love you. No really – I love you!!
I’m always on the hunt for fresh icons and although I knew about Iconfinder its great to see some others too.
Del.icio.us op 28 juli 2008 | Michel Vuijlsteke's weblog on July 28th, 2008
[...] – Webmasterkit.info » Archives » Free Web icons – An Enormous list (tags: [...]
James Robbins on July 30th, 2008
Bookmarking this site for sure. Have already picked several icons to be used already – First visit.
dutchgirl on August 24th, 2008
There’s a new icon search engine with better results and a large keyword database. http://www.easyiconfinder.com
Related to the searched keyword easyiconfinder presents other webresults, blog and webgraphics.
Huge database and large keyword database which is improved by the community
Servicii SEO on August 27th, 2008
Great resource, thank you! I didn’t knew there were any search engine for icons.
Bromsgrove Web Design on August 29th, 2008
I’ve already used a good load of these already – they’ve been a godsend. Thank you!! 
Web Design Tutorials on September 3rd, 2008
Thx a lot for the nice tutorial and the psd – exactly what I was looking for!
Laura on September 17th, 2008
I liked the search engine, I wish they could add some of
Iconshock’s Vista icons there.. I love how they look.
Frank J on November 21st, 2008
Nice collection and for free! You can’t beat free and the quality is incredible.
FindIcons.com on April 5th, 2010
I justed wanted to suggest a new and better icon search engine, FindIcons.com, which has larger icon collection and complete search filters.
Kredittkort Hjelpen on November 4th, 2010
Thanks the mouserunner ones, was perfect for me. Bookmarked so I can check back if I need some more.
Valikonen on December 16th, 2010
Very cool collection, thanks. If you want to see menus, web site trends, galleries etc, visit http://www.1artmedia.com , you have online demo and free download. Bye!
stop smoking on June 11th, 2008
some of those icons would work well with my website.