diff --git a/src/AdamWathan/EloquentOAuth/Authorizer.php b/src/AdamWathan/EloquentOAuth/Authorizer.php
new file mode 100644
index 0000000..9dfe235
--- /dev/null
+++ b/src/AdamWathan/EloquentOAuth/Authorizer.php
@@ -0,0 +1,27 @@
+<?php namespace AdamWathan\EloquentOAuth;
+
+use Illuminate\Routing\Redirector as Redirect;
+use AdamWathan\EloquentOAuth\Providers\ProviderInterface;
+
+class Authorizer
+{
+    protected $redirect;
+    protected $stateManager;
+
+    public function __construct(Redirect $redirect, StateManager $stateManager)
+    {
+        $this->redirect = $redirect;
+        $this->stateManager = $stateManager;
+    }
+
+    public function authorize(ProviderInterface $provider)
+    {
+        $state = $this->generateState();
+        return $this->redirect->to($provider->authorizeUrl($state));
+    }
+
+    protected function generateState()
+    {
+        return $this->stateManager->generateState();
+    }
+}
diff --git a/src/AdamWathan/EloquentOAuth/EloquentOAuthServiceProvider.php b/src/AdamWathan/EloquentOAuth/EloquentOAuthServiceProvider.php
index 5214b47..513132a 100644
--- a/src/AdamWathan/EloquentOAuth/EloquentOAuthServiceProvider.php
+++ b/src/AdamWathan/EloquentOAuth/EloquentOAuthServiceProvider.php
@@ -47,7 +47,8 @@ protected function registerOAuthManager()
         $this->configureOAuthIdentitiesTable();
         $users = new UserStore($app['config']['auth.model']);
         $stateManager = new StateManager($app['session.store'], $app['request']);
-        $oauth = new OAuthManager($app['auth'], $app['redirect'], $stateManager, $users, new IdentityStore);
+        $authorizer = new Authorizer($app['redirect'], $stateManager);
+        $oauth = new OAuthManager($authorizer, new ProviderRegistrar, $app['auth'], $stateManager, $users, new IdentityStore);
         $this->registerProviders($oauth);
         return $oauth;
     });
diff --git a/src/AdamWathan/EloquentOAuth/OAuthManager.php b/src/AdamWathan/EloquentOAuth/OAuthManager.php
index a118b74..5d88a55 100644
--- a/src/AdamWathan/EloquentOAuth/OAuthManager.php
+++ b/src/AdamWathan/EloquentOAuth/OAuthManager.php
@@ -2,24 +2,24 @@
 
 use Closure;
 use Illuminate\Auth\AuthManager as Auth;
-use Illuminate\Routing\Redirector as Redirect;
 use AdamWathan\EloquentOAuth\Exceptions\ProviderNotRegisteredException;
 use AdamWathan\EloquentOAuth\Exceptions\InvalidAuthorizationCodeException;
 use AdamWathan\EloquentOAuth\Providers\ProviderInterface;
 
 class OAuthManager
 {
+    protected $authorizer;
+    protected $providers;
     protected $auth;
-    protected $redirect;
     protected $stateManager;
     protected $users;
     protected $identities;
-    protected $providers = array();
 
-    public function __construct(Auth $auth, Redirect $redirect, StateManager $stateManager, UserStore $users, IdentityStore $identities)
+    public function __construct(Authorizer $authorizer, ProviderRegistrar $providers, Auth $auth, StateManager $stateManager, UserStore $users, IdentityStore $identities)
     {
+        $this->authorizer = $authorizer;
+        $this->providers = $providers;
         $this->auth = $auth;
-        $this->redirect = $redirect;
         $this->stateManager = $stateManager;
         $this->users = $users;
         $this->identities = $identities;
@@ -27,13 +27,12 @@ public function __construct(Auth $auth, Redirect $redirect, StateManager $stateM
 
     public function registerProvider($alias, ProviderInterface $provider)
     {
-        $this->providers[$alias] = $provider;
+        $this->providers->registerProvider($alias, $provider);
     }
 
-    public function authorize($provider)
+    public function authorize($providerAlias)
     {
-        $state = $this->generateState();
-        return $this->redirect->to($this->getProvider($provider)->authorizeUrl($state));
+        return $this->authorizer->authorize($this->getProvider($providerAlias));
     }
 
     public function login($provider, Closure $callback = null)
@@ -49,22 +48,9 @@ public function login($provider, Closure $callback = null)
         return $user;
     }
 
-    protected function generateState()
-    {
-        return $this->stateManager->generateState();
-    }
-
     protected function getProvider($providerAlias)
     {
-        if (! $this->hasProvider($providerAlias)) {
-            throw new ProviderNotRegisteredException("No provider has been registered under the alias '{$providerAlias}'");
-        }
-        return $this->providers[$providerAlias];
-    }
-
-    protected function hasProvider($alias)
-    {
-        return isset($this->providers[$alias]);
+        return $this->providers->getProvider($providerAlias);
     }
 
     protected function verifyState()
diff --git a/src/AdamWathan/EloquentOAuth/ProviderRegistrar.php b/src/AdamWathan/EloquentOAuth/ProviderRegistrar.php
new file mode 100644
index 0000000..00350c9
--- /dev/null
+++ b/src/AdamWathan/EloquentOAuth/ProviderRegistrar.php
@@ -0,0 +1,27 @@
+<?php namespace AdamWathan\EloquentOAuth;
+
+use AdamWathan\EloquentOAuth\Providers\ProviderInterface;
+use AdamWathan\EloquentOAuth\Exceptions\ProviderNotRegisteredException;
+
+class ProviderRegistrar
+{
+    private $providers = array();
+
+    public function registerProvider($alias, ProviderInterface $provider)
+    {
+        $this->providers[$alias] = $provider;
+    }
+
+    public function getProvider($providerAlias)
+    {
+        if (! $this->hasProvider($providerAlias)) {
+            throw new ProviderNotRegisteredException("No provider has been registered under the alias '{$providerAlias}'");
+        }
+        return $this->providers[$providerAlias];
+    }
+
+    protected function hasProvider($alias)
+    {
+        return isset($this->providers[$alias]);
+    }
+}