Comprehensive high quality icons for Windows (XP, Vista, etc.), Macintosh (OSX, OS) and Linux Systems (PNG Files). You can use these icon for your web design, software projects or another work for free.

The Icon Archive has several categories of icons are list below.

Categories of icons that avialable at Icon Archive
Animal Icons, Application Icons, Art Icons, Avatar Icons, Buildings Icons, Business Icons, Cartoon Icons, Christmas Icons, Computer Icons, Culture Icons, Folder Icons, Food Icons, Funny Icons, Game Icons, Halloween Icons, Holiday Icons, Kids Icons, Lifestyle Icons, Love Icons, Media Icons, Music Icons, Nature Icons, Object Icons, People Icons, Photographic Icons, Places Icons, Sci-Fi Icons, Sport Icons, System Icons, Technology Icons, Transport Icons, TV & Movie Icons, Vintage Icons.

Link : Icon Archive