diff --git a/OpenId2/Types.hs b/OpenId2/Types.hs
--- a/OpenId2/Types.hs
+++ b/OpenId2/Types.hs
@@ -17,6 +17,8 @@
   ) where
 
 -- Libraries
+import Data.Data (Data)
+import Data.Typeable (Typeable)
 import Web.Authenticate.Internal
 
 -- | An OpenID provider.
@@ -24,4 +26,4 @@
 
 -- | A valid OpenID identifier.
 newtype Identifier = Identifier { identifier :: String }
-  deriving (Eq, Show, Read)
+    deriving (Eq, Ord, Show, Read, Data, Typeable)
diff --git a/Web/Authenticate/Facebook.hs b/Web/Authenticate/Facebook.hs
--- a/Web/Authenticate/Facebook.hs
+++ b/Web/Authenticate/Facebook.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE DeriveDataTypeable #-}
 module Web.Authenticate.Facebook where
 
 import Network.HTTP.Enumerator
@@ -9,16 +10,18 @@
 import qualified Data.ByteString.Lazy as L
 import qualified Data.ByteString as S
 import Web.Authenticate.Internal (qsEncode)
+import Data.Data (Data)
+import Data.Typeable (Typeable)
 
 data Facebook = Facebook
     { facebookClientId :: String
     , facebookClientSecret :: String
     , facebookRedirectUri :: String
     }
-    deriving (Show, Eq, Read)
+    deriving (Show, Eq, Read, Ord, Data, Typeable)
 
 newtype AccessToken = AccessToken { unAccessToken :: String }
-    deriving (Show, Eq, Read)
+    deriving (Show, Eq, Read, Ord, Data, Typeable)
 
 getForwardUrl :: Facebook -> [String] -> String
 getForwardUrl fb perms = concat
diff --git a/Web/Authenticate/Rpxnow.hs b/Web/Authenticate/Rpxnow.hs
--- a/Web/Authenticate/Rpxnow.hs
+++ b/Web/Authenticate/Rpxnow.hs
@@ -33,12 +33,15 @@
 import qualified Data.ByteString.Lazy.Char8 as L
 import Control.Exception (throwIO)
 import Web.Authenticate.Internal
+import Data.Data (Data)
+import Data.Typeable (Typeable)
 
 -- | Information received from Rpxnow after a valid login.
 data Identifier = Identifier
     { identifier :: String
     , extraData :: [(String, String)]
     }
+    deriving (Eq, Ord, Read, Show, Data, Typeable)
 
 -- | Attempt to log a user in.
 authenticate :: (MonadIO m,
diff --git a/authenticate.cabal b/authenticate.cabal
--- a/authenticate.cabal
+++ b/authenticate.cabal
@@ -1,5 +1,5 @@
 name:            authenticate
-version:         0.7.0
+version:         0.7.1
 license:         BSD3
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>