A few days ago I was looking for some free icons to put inside one of my dummy Adobe AIR/Flex apps, so I decided to google a little. I was surprised to see the amount of free and high quality stuff I found. I even made a small collection of some of the most interesting and most usable ones and I was thinking that it should be great to share this stuff with you 
. The icons and are provided, by more talented teams of designers, as being free to use materials, but I suggest you to review the readme files inside a icon pack zip before you decide to use it in a commercial application. Enough with the talking…. so here they are 
Adobe Applications Icons Pack
c9-d.com Icon Set
Developer Icons Set
Button Icons Set
Free Web Development Icons Pack
Business Icons
Function Icons
Free Web Development Icons Pack 4
Msn Buddy Icons
Ecommerce Icons
NX 09 Icons Pack
OneBit Icons Pack
XIAO Icons Set 1 + Set 2
Basix Web 2.0 Icons
Thanks Barney!
Great job.
[...] Free web 2.0 icons @ Pirvulescu ( “small” collection of free and cool icons ) Cool icons at FamFamFam ( a really nice website with some really sweet icons ). [...]
[...] Here is a great post were you can download some nice icon packs for your web applications. Share and Enjoy: [...]