XMonad.Hooks.EwmhDesktops
Makes xmonad use the EWMH hints to tell panel applications about its workspaces and the windows therein. It also allows the user to interact with xmonad by clicking on panels and window lists.
Usage
You can use this module with the following in your ~/.xmonad/xmonad.hs:
import XMonad
import XMonad.Hooks.EwmhDesktops
main = xmonad $ ewmh def{ handleEventHook =
handleEventHook def <+> fullscreenEventHook }
You may also be interested in docks from XMonad.Hooks.ManageDocks.