diff --git a/README.md b/README.md
index 56689bca12c23228e82ca589ad395172ae6ef2f4..2c783f7ba07685587c0f299d0785ec130e176e11 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Description
 
-The IVO robot (shown in the next image) is a mobile platform developed at [PAL Robotics]() and designed to perform the following tasks:
+The IVO robot (shown in the next image) is a mobile platform developed at [PAL Robotics](https://pal-robotics.com/) and designed to perform the following tasks:
 
 * Human robot interaction (HRI)
 * Navigation in urban environments
@@ -17,11 +17,11 @@ The main features of the robot are listed next:
 
 The main sensors available onboard the robot are listed next:
 
-* A [Velodyne PUCK]() sensor facing forward at the base for navigation.
+* A [Velodyne PUCK](https://velodynelidar.com/products/puck/) sensor facing forward at the base for navigation.
 * A [Sick ]() lidar sensor facing backward at the base for navigation.
-* A [Intel Realsense D435]() at the torso facing downward for navigation.
+* A [Intel Realsense D435](https://www.intelrealsense.com/depth-camera-d435/) at the torso facing downward for navigation.
 * An IMU senor at the base for navigation.
-* A second [Intel Realsense D435]() at the head for perception.
+* A second [Intel Realsense D435](https://www.intelrealsense.com/depth-camera-d435/) at the head for perception.
 
 Check the [robot documentation](https://drive.google.com/file/d/1fEy62MY-lKcy9jbBWh154BZ4-zLgMPRF/view?usp=sharing) for further details on the IVO robot.
 
@@ -32,7 +32,7 @@ Check the [robot documentation](https://drive.google.com/file/d/1fEy62MY-lKcy9jb
 * Merge your workspace with the following rosinstall files following the steps in this [tutorial](http://wiki.ros.org/wstool#Merge_in_Additional_rosinstall_Files).
 
     * [iri_core.rosinstall](https://gitlab.iri.upc.edu/labrobotica/ros/iri_ros_how_to/-/raw/master/rosinstall/iri_core.rosinstall)
-    * [ivo_common.rosinstall]()
+    * [ivo_common.rosinstall](https://gitlab.iri.upc.edu/labrobotica/ros/robots/ivo/iri_ivo_how_to/-/raw/master/rosinstall/ivo_common.rosinstall)
 
 * Download all new ROS packages with the following command:
 ```