diff --git a/README.md b/README.md
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@@ -182,6 +182,8 @@ It's a great way to learn.
 * [**JavaScript**: _Building a frontend framework, from scratch, with components (templating, state, VDOM)_](https://mfrachet.github.io/create-frontend-framework/)
 * [**JavaScript**: _Build your own React_](https://pomb.us/build-your-own-react/)
 * [**JavaScript**: _Building a Custom React Renderer_](https://youtu.be/CGpMlWVcHok) [video]
+* [**Javascript**: _Reinventing Mobx_](https://www.youtube.com/watch?v=P_WqKZxpX8g) [video]
+* [**Javascript**: _Reinventing RxJS_](https://vimeo.com/345719107) [video]
 
 #### Build your own `Game`