diff --git a/Data/Tagged.hs b/Data/Tagged.hs
new file mode 100644
--- /dev/null
+++ b/Data/Tagged.hs
@@ -0,0 +1,42 @@
+----------------------------------------------------------------------------
+-- |
+-- Module     : Data.Tagged
+-- Copyright  : 2009 Edward Kmett
+-- License    : BSD3
+--
+-- Maintainer  : Edward Kmett <ekmett@gmail.com>
+-- Stability   : experimental
+-- Portability : portable
+--
+-------------------------------------------------------------------------------
+
+module Data.Tagged
+    ( Tagged(..)
+    , retag
+    ) where
+
+import Control.Applicative 
+
+newtype Tagged a b = Tagged { unTagged :: b } deriving (Eq,Ord,Show,Read)
+
+instance Functor (Tagged a) where 
+    fmap f (Tagged x) = Tagged (f x)
+    {-# INLINE fmap #-}
+
+instance Applicative (Tagged a) where
+    pure = Tagged
+    {-# INLINE pure #-}
+    Tagged f <*> Tagged x = Tagged (f x)
+    {-# INLINE (<*>) #-}
+
+instance Monad (Tagged a) where
+    return = Tagged
+    {-# INLINE return #-}
+    Tagged m >>= k = k m 
+    {-# INLINE (>>=) #-}
+    _ >> n = n
+    {-# INLINE (>>) #-}
+
+retag :: Tagged f b -> Tagged g b
+retag = Tagged . unTagged 
+{-# INLINE retag #-}
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright (c) 2009 Edward Kmett
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Edward Kmett nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Setup.lhs b/Setup.lhs
new file mode 100644
--- /dev/null
+++ b/Setup.lhs
@@ -0,0 +1,7 @@
+#!/usr/bin/runhaskell
+> module Main (main) where
+
+> import Distribution.Simple
+
+> main :: IO ()
+> main = defaultMain
diff --git a/tagged.cabal b/tagged.cabal
new file mode 100644
--- /dev/null
+++ b/tagged.cabal
@@ -0,0 +1,20 @@
+name:		    tagged
+version:	    0.0
+license:	    BSD3
+license-file:   LICENSE
+author:		    Edward A. Kmett
+maintainer:	    Edward A. Kmett <ekmett@gmail.com>
+stability:	    experimental
+category:	    Data, Phantom Types
+synopsis:	    Provides a newtype wrapper for phantom types to avoid passing dummy arguments
+copyright:      2009 Edward A. Kmett
+description:    Provides a newtype wrapper for phantom types to avoid passing dummy arguments
+build-type:     Simple
+cabal-version:  >=1.2
+
+library
+  build-depends: 
+    base >= 4 && < 5
+  exposed-modules:
+    Data.Tagged
+  ghc-options: -Wall