GUI Icon Sets for Web Designers
hongkiat.com
hongkiat.com
http://webdesignledger.com/freebies/21-best-icon-sets-for-de...
http://speckyboy.com/2008/07/28/96-best-ever-free-icon-sets-...
http://www.problogdesign.com/resources/30-best-free-icon-set...
And the list goes on.
Basically, I have no idea who would use the majority of those icons. Most look completely useless as a set, and that's the problem. If one were to use icons on his or her site, most likely he or she actually wants them to look good. I find it hard to believe the majority of those icons could ever be used on a good looking site. ~It is almost as if the creators made the icons to show that they could make icons.
I'm not saying the icons are completely useless, but to use them, you have to have the application centered around the design of the icons! ~Which, in my opinion, is not how I want to start a website, or a project. I want a good idea and then apply the correct design and layout, but it's not important. Doing what we did is fun, even though it may not be very practical in all cases.
It seems free icons are somewhat unpopular around here. I mostly use them as application icons on my desktop, considering many of the *nix GUI apps don't have an icon, or even a logo.