diff --git a/Backend/README.md b/Backend/README.md
index ba12eca..e8c6dc4 100644
--- a/Backend/README.md
+++ b/Backend/README.md
@@ -8,6 +8,7 @@
 * [Youtube series](https://www.youtube.com/playlist?list=PLQVvvaa0QuDe9nqlirjacLkBYdgc2inh3)
 * [Beginners guide to Django](https://simpleisbetterthancomplex.com/series/2017/09/04/a-complete-beginners-guide-to-django-part-1.html)
 * [Making Blog API with Django](https://www.youtube.com/playlist?list=PLEsfXFp6DpzTOcOVdZF-th7BS_GYGguAS)
+* [CS50's Web Programming with Python and Javascript](https://cs50.harvard.edu/web/2020/)
 
 
 
diff --git a/Data-Structures-and-Algorithms/README.md b/Data-Structures-and-Algorithms/README.md
index 0f5fc48..fcf89f3 100644
--- a/Data-Structures-and-Algorithms/README.md
+++ b/Data-Structures-and-Algorithms/README.md
@@ -18,4 +18,6 @@
 
 * [Mastering Data Structures with C++(paid)](https://www.udemy.com/course/datastructurescncpp/)
 
-* [Algorithm Specialization By Stanford(paid but financial aid available)](https://www.coursera.org/specializations/algorithms?)
\ No newline at end of file
+* [Algorithm Specialization By Stanford(paid but financial aid available)](https://www.coursera.org/specializations/algorithms?)
+
+* [Data Structures by Niema Moshiri and Liz Izhikevich](https://stepik.org/course/579/promo)