How to restore network status indicator in ubuntu

By mistake I removed it from the panel(Ubuntu 9.10). Then I searched the web to see if there was a post telling me how to restore it. Surprisingly, I didn't find a good one. Then I figured out myself. It is very simple, because all those basic applets (volume indicator, wifi, blue-tooth, battery) come in an applet called "Notification Area". Hence, to restore them is as simple as right clicking on the panel, then clicking "Add to panel", and then selecting "Notification Area".