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diff --git a/XMonad/Util/NamedWindows.hs b/XMonad/Util/NamedWindows.hs
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+-----------------------------------------------------------------------------
+-- |
+-- Module      :  XMonad.Util.NamedWindows
+-- Copyright   :  (c) David Roundy <droundy@darcs.net>
+-- License     :  BSD3-style (see LICENSE)
+--
+-- Maintainer  :  David Roundy <droundy@darcs.net>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- This module allows you to associate the X titles of windows with
+-- them.
+--
+-----------------------------------------------------------------------------
+
+module XMonad.Util.NamedWindows (
+                                   -- * Usage
+                                   -- $usage
+                                   NamedWindow, 
+                                   getName, 
+                                   withNamedWindow, 
+                                   unName 
+                                  ) where
+
+import Control.Monad.Reader ( asks )
+import Control.Monad.State ( gets )
+
+import qualified XMonad.StackSet as W ( peek )
+
+import Graphics.X11.Xlib
+import Graphics.X11.Xlib.Extras
+
+import XMonad
+
+-- $usage
+--   See "XMonadContrib.Mosaic" for an example of its use.
+
+
+data NamedWindow = NW !String !Window
+instance Eq NamedWindow where
+    (NW s _) == (NW s' _) = s == s'
+instance Ord NamedWindow where
+    compare (NW s _) (NW s' _) = compare s s'
+instance Show NamedWindow where
+    show (NW n _) = n
+
+getName :: Window -> X NamedWindow
+getName w = asks display >>= \d -> do s <- io $ getClassHint d w
+                                      n <- maybe (resName s) id `fmap` io (fetchName d w)
+                                      return $ NW n w
+
+unName :: NamedWindow -> Window
+unName (NW _ w) = w
+
+withNamedWindow :: (NamedWindow -> X ()) -> X ()
+withNamedWindow f = do ws <- gets windowset
+                       whenJust (W.peek ws) $ \w -> getName w >>= f