In Nautilus (v3.2.1), in the left-hand navigation pane, there is an entry Browse Network. This is only available when the sidebar is set to Places.
I prefer the sidebar setting Tree but then the entry Browse Network disappears. I'm too much of a beginner to figure out where to look in the filesystem in order to find the networked computers (file shares on Windows 7).
When not using the Places setting in the sidebar, how do I navigate to the network shares?

smb://[other-pc-ip-address]:) – Achu Feb 12 '12 at 17:38