diff --git a/.learn/exercises/00-intro/README.es.md b/.learn/exercises/00-intro/README.es.md
index b62cae22..35b5dfb7 100644
--- a/.learn/exercises/00-intro/README.es.md
+++ b/.learn/exercises/00-intro/README.es.md
@@ -1,3 +1,7 @@
+---
+intro: "https://www.youtube.com/watch?v=O5R0QVGWwEs"
+---
+
 # Welcome to Flask!
 
 En este tutorial vamos a construir una REST API que expone 3 endpoints a Internet:
diff --git a/.learn/exercises/01-hello-world/README.es.md b/.learn/exercises/01-hello-world/README.es.md
index 4d925a63..6d5c17f0 100644
--- a/.learn/exercises/01-hello-world/README.es.md
+++ b/.learn/exercises/01-hello-world/README.es.md
@@ -1,3 +1,7 @@
+---
+tutorial: "https://www.youtube.com/watch?v=5ZyRzKESrEM"
+---
+
 # `01` Hello World with Flask 
 
 En este tutorial construiremos una REST API utilizando el lenguaje de programación Python y la librería de [Flask](https://flask.palletsprojects.com/) (ideal para crear APIs).
diff --git a/.learn/exercises/02-pipenv-installation/README.es.md b/.learn/exercises/02-pipenv-installation/README.es.md
index 09caff03..367046f5 100644
--- a/.learn/exercises/02-pipenv-installation/README.es.md
+++ b/.learn/exercises/02-pipenv-installation/README.es.md
@@ -1,3 +1,7 @@
+---
+tutorial: "https://www.youtube.com/watch?v=rL8seYExJ0E"
+---
+
 # `02` Initialize Pipenv
 
 Es posible tener varios proyectos con Python con diferentes versiones de Python, por esta razón debes especificar que versión de Python quieres usar en cada proyecto durante su configuración.
diff --git a/.learn/exercises/02.1-flask-installation/README.es.md b/.learn/exercises/02.1-flask-installation/README.es.md
index a608ef5e..f919929c 100644
--- a/.learn/exercises/02.1-flask-installation/README.es.md
+++ b/.learn/exercises/02.1-flask-installation/README.es.md
@@ -1,3 +1,7 @@
+---
+tutorial: "https://www.youtube.com/watch?v=BnHD7yW9Gmw"
+---
+
 # `02.1` Install Flask
 
 Ahora tenemos que instalar la dependencia de nuestro primer paquete para este proyecto: [Flask](https://flask.palletsprojects.com/).
diff --git a/.learn/exercises/03-first-flask-app/README.es.md b/.learn/exercises/03-first-flask-app/README.es.md
index 1f835a6a..65013182 100644
--- a/.learn/exercises/03-first-flask-app/README.es.md
+++ b/.learn/exercises/03-first-flask-app/README.es.md
@@ -1,3 +1,7 @@
+---
+tutorial: "https://www.youtube.com/watch?v=zy2WAPNbdgk"
+---
+
 # `03` First Flask App
 
 Flask es una app que se comporta como un servidor web, es decir, que expone (publica) un grupo de URLs en internet (como una API o un sitio web).
diff --git a/.learn/exercises/03.1-app-run/README.es.md b/.learn/exercises/03.1-app-run/README.es.md
index 126c10bb..711fa5c6 100644
--- a/.learn/exercises/03.1-app-run/README.es.md
+++ b/.learn/exercises/03.1-app-run/README.es.md
@@ -1,3 +1,7 @@
+---
+tutorial: "https://www.youtube.com/watch?v=NDjImfVUTd8"
+---
+
 # `03.1` Running your new application
 
 Después de crear nuestra app, debemos ejecutar e inicializar la aplicación.
diff --git a/.learn/exercises/03.2-check-for-live/README.es.md b/.learn/exercises/03.2-check-for-live/README.es.md
index 8c756cbc..db10eff0 100644
--- a/.learn/exercises/03.2-check-for-live/README.es.md
+++ b/.learn/exercises/03.2-check-for-live/README.es.md
@@ -1,3 +1,7 @@
+---
+tutorial: "https://www.youtube.com/watch?v=40eRmpTYVBo"
+---
+
 # `03.2` Check for Live URL 
 
 Puedes verificarlo haciendo clic en la URL que se ve en la línea de comandos una vez que Flask haya comenzado a ejecutarse, así:
diff --git a/.learn/exercises/03.3-your-first-route/README.es.md b/.learn/exercises/03.3-your-first-route/README.es.md
index cbb0b632..a7a966c4 100644
--- a/.learn/exercises/03.3-your-first-route/README.es.md
+++ b/.learn/exercises/03.3-your-first-route/README.es.md
@@ -1,3 +1,8 @@
+---
+tutorial: "https://www.youtube.com/watch?v=g13zIxQ9c6Y"
+---
+
+
 # `03.3` Creating Your First Endpoint (route)
 
 Como Flask es un servidor, no tiene sentido no añadirle URLs para exponerlas/publicarlas en internet, por ejemplo:
diff --git a/.learn/exercises/05-returning-json/README.es.md b/.learn/exercises/05-returning-json/README.es.md
index 4a1a341a..8961e9ec 100644
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+++ b/.learn/exercises/05-returning-json/README.es.md
@@ -1,3 +1,8 @@
+---
+tutorial: "https://www.youtube.com/watch?v=0uZ4fKWeT1o"
+---
+
+
 # `05` Returning JSON
 
 Las REST APIs tienen que retornar datos en formato JSON, no en formato HTML.
diff --git a/.learn/exercises/07-post_todo/README.es.md b/.learn/exercises/07-post_todo/README.es.md
index dce1dc26..bec9f51a 100644
--- a/.learn/exercises/07-post_todo/README.es.md
+++ b/.learn/exercises/07-post_todo/README.es.md
@@ -1,3 +1,7 @@
+---
+tutorial: "https://www.youtube.com/watch?v=umTVZKucaDw"
+---
+
 # `07` POST /todos (add a new task)
 
 Ahora que ya está hecho el método GET `/todos`, debemos pensar en el resto de los endpoints de nuestra API:
diff --git a/.learn/exercises/07.1-test-post-todo/README.es.md b/.learn/exercises/07.1-test-post-todo/README.es.md
index c8fca903..b8f9c6f2 100644
--- a/.learn/exercises/07.1-test-post-todo/README.es.md
+++ b/.learn/exercises/07.1-test-post-todo/README.es.md
@@ -1,3 +1,7 @@
+---
+tutorial: "https://www.youtube.com/watch?v=tUXgOjOgpho"
+---
+
 # `07.1` Test your endpoint
 
 Hasta ahora esto lo que tienes sobre el endpoint `POST /todos`, tomate el tiempo para analizar cada línea:
diff --git a/.learn/exercises/07.2-finish-post-todo/README.es.md b/.learn/exercises/07.2-finish-post-todo/README.es.md
index e358cd27..b5df5c73 100644
--- a/.learn/exercises/07.2-finish-post-todo/README.es.md
+++ b/.learn/exercises/07.2-finish-post-todo/README.es.md
@@ -1,3 +1,7 @@
+---
+tutorial: "https://www.youtube.com/watch?v=rZbXlG7Vl-4"
+---
+
 # `07.2` Finish the POST /todos
 
 Tu código debería verse así ahora: