coolでスタイリッシュなアイコンセット。40以上!素晴らしいです。

1.Exempli Gratia

14 icons in various file formats (PNG, ICN, and ICO). By apathae

2.KIDAUBIS CHINESE WIND ICON

16 unique Chinese themed icons. By KIDAUBIS DESIGN

3.Container Icons

40 icons the Mac OS and Windows. By ANTREPO4.COM

4.Wooden Slick Drives

10 icons for Mac OS and Windows. By Thrasos Varnava

5.HydroPRO v2

10 beautiful icons, the last set from Ben Fleming.

6.Ive Drives

4 beautiful icons for the Mac OS and Windows. By Iconfactory

7.Desktop Icons

9 large-dimension icons that comes in ICO and PNG formats. By Anders Bjarnle

8.Black & Blue Icons

6 icons, you’ll have to scroll down a bit to find the download link. By Icon Drawer

9.Star Trek Folders

4 icons in different sizes (12 icons in total). By Iconfactory

10.Folder Icons Pack

50 icons for the Mac OS and Windows. By deleket

11.Block Creatures Icons

4 unique icons in 3 sizes available for the Mac OS, Windows, and Linux. By Fast Icon

その他は以下の引用元からどうぞ

via 40+ Stylish and Trendy Icon Sets