diff --git a/Data/Universe/Instances/Extended.hs b/Data/Universe/Instances/Extended.hs
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--- /dev/null
+++ b/Data/Universe/Instances/Extended.hs
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+{-# LANGUAGE FlexibleContexts #-}
+module Data.Universe.Instances.Extended (
+	-- | Instances for 'Universe' and 'Finite' for function-like functors and the empty type.
+	Universe(..), Finite(..)
+	) where
+
+import Data.Void
+import Control.Comonad.Trans.Traced
+import Data.Functor.Rep
+import Data.Universe.Instances.Base
+
+instance Universe Void where universe = []
+
+-- We could do this:
+--
+-- instance Universe (f a) => Universe (Co f a) where universe = map Rep universe
+--
+-- However, since you probably only apply Rep to functors when you want to
+-- think of them as being representable, I think it makes sense to use an
+-- instance based on the representable-ness rather than the inherent
+-- universe-ness.
+--
+-- Please complain if you disagree!
+instance (Representable f, Finite (Rep f), Ord (Rep f), Universe a)
+	=> Universe (Co f a)
+	where universe = map tabulate universe
+instance (Representable f, Finite s, Ord s, Finite (Rep f), Ord (Rep f), Universe a)
+	=> Universe (TracedT s f a)
+	where universe = map tabulate universe
+
+instance Finite Void
+
+instance (Representable f, Finite (Rep f), Ord (Rep f), Finite a)
+	=> Finite (Co f a)
+	where universeF = map tabulate universeF
+instance (Representable f, Finite s, Ord s, Finite (Rep f), Ord (Rep f), Finite a)
+	=> Finite (TracedT s f a)
+	where universeF = map tabulate universeF
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
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+Copyright (c) 2013, Daniel Wagner
+
+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 Daniel Wagner 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.hs b/Setup.hs
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+++ b/Setup.hs
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+import Distribution.Simple
+main = defaultMain
diff --git a/universe-instances-extended.cabal b/universe-instances-extended.cabal
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--- /dev/null
+++ b/universe-instances-extended.cabal
@@ -0,0 +1,28 @@
+name:                universe-instances-extended
+version:             1.0
+synopsis:            Universe instances for types from select extra packages
+homepage:            https://github.com/dmwit/universe
+license:             BSD3
+license-file:        LICENSE
+author:              Daniel Wagner
+maintainer:          me@dmwit.com
+copyright:           Daniel Wagner 2014
+category:            Data
+build-type:          Simple
+cabal-version:       >=1.10
+source-repository head
+    type:            git
+    location:        https://github.com/dmwit/universe
+source-repository this
+    type:            git
+    location:        https://github.com/dmwit/universe
+    tag:             1.0
+
+library
+  exposed-modules:     Data.Universe.Instances.Extended
+  build-depends:       adjunctions             >=4   && <4.1,
+                       base                    >=4   && <5  ,
+                       comonad                 >=4   && <4.1,
+                       universe-instances-base >=1.0 && <1.1,
+                       void                    >=0.1 && <0.7
+  default-language:    Haskell2010