If you're using Gnome 3 fallback you can add / remove applets like Gnome 2. The only difference is you have to alt + right-click on a panel / applet instead of

If you're using Gnome 3 fallback you can add / remove applets like Gnome 2. The only difference is you have to alt + right-click on a panel / applet instead of just a regular right-click.