diff --git a/README.rst b/README.rst
index a8cb012c..80c70347 100644
--- a/README.rst
+++ b/README.rst
@@ -28,13 +28,13 @@ If you prefer to install Ryu from the source code::
    % cd ryu; python ./setup.py install
 
 If you want to use Ryu with `OpenStack <http://openstack.org/>`_,
-please refer `detailed documents <http://www.osrg.net/ryu/overview.html>`_.
+please refer `detailed documents <http://osrg.github.com/ryu/doc/using_with_openstack.html>`_.
 You can create tens of thousands of isolated virtual networks without
 using VLAN.  The Ryu application is included in OpenStack mainline as
 of Essex release.
 
-If you want to run your Ryu application, have a look at
-`a simple example <https://github.com/osrg/ryu/blob/master/ryu/app/simple_switch.py>`_.
+If you want to write your Ryu application, have a look at
+`Writing ryu application <http://osrg.github.com/ryu/doc/writing_ryu_app.html>`_ document.
 After writing your application, just type::
 
    % ryu-manager yourapp.py