You see the Network icon by clicking the Computer button in the Finder toolbar, or by choosing Computer from the Go menu.
When your computer is set up to bind to a managed network, such as NetInfo, you can browse the network using the Network icon as if it were a hard disk or CD.
Using the Finder, Network resources appear like those on your hard disk, such as /Library and /System. These network resources can be used by any user who has access to them.
For more information on NetInfo, see the whitepaper, "Understanding and Using NetInfo" (
http://manuals.info.apple.com/Apple_Support_Area/Manuals/software/UnderstandingUsingNetInfo.PDF).