Avia Software Icons
a collection of 86 royalty-free aviation and transportation icons
Perfect Logistic Icons
perfect logistic icons - an eye-catching clipart of logistics-related icons
Icons for Windows 7 and Vista
a collection of high-quality interface icons in windows vista/7 style
48×48 Free Time Icons
48x48 free time icons pack will instantly refine your application or web site
Pichon for Mac
contains 135k free icons. works offline. a must for any design work.