diff --git a/source/manual/introduction/deeper_look.rst b/source/manual/introduction/deeper_look.rst
index 7e5f4212..8adbe8c3 100644
--- a/source/manual/introduction/deeper_look.rst
+++ b/source/manual/introduction/deeper_look.rst
@@ -71,8 +71,8 @@ There are a number of powerful libraries the Range takes advantage of:
 
 - `Audaspace <https://audaspace.github.io/>`__: A sound library for control of audio. Uses OpenAL or SDL.
 - `Bullet <http://bulletphysics.org/wordpress/>`__: A physics engine featuring 3D collision detection, soft body dynamics and rigid body dynamics.
-- `Detour <http://masagroup.github.io/recastdetour/>`__: A pathfinding and spatial reasoning toolkit.
-- `Recast <http://masagroup.github.io/recastdetour/>`__: A state of the art navigation mesh construction tool set for games.
+- `Detour <http://recastnav.com/>`__: A pathfinding and spatial reasoning toolkit.
+- `Recast <http://recastnav.com/>`__: A state of the art navigation mesh construction tool set for games.
 
 Project Development Process
 ===========================
@@ -85,4 +85,4 @@ When creating a game or simulation in Range, there are four essential steps:
 #. Create one (or more) camera to give a frustum from which to render the scene, and 
    modify the parameters to support the environment in which the game will be displayed, 
    such as Stereo rendering.
-#. Launch the game, using the internal player or exporting a runtime to the appropriate platform.
\ No newline at end of file
+#. Launch the game, using the internal player or exporting a runtime to the appropriate platform.