Jumping to Related Places in the NetBeans Java Editor
By Geertjan-Oracle on Aug 25, 2008
Now look at those browny-greeny marks in the right sidebar. When you click them, the cursor jumps to places where the selected item is used. So, in the case of import statements, you can click the browny-greeny mark and then find yourself in places in the code where you're doing something with that class.
I never knew that and it's pretty cool.