diff --git a/README.md b/README.md
index c79592b..2317f52 100644
--- a/README.md
+++ b/README.md
@@ -93,6 +93,10 @@ But knowing the stuff will help you become better! :muscle:*
 - :book: [SICP: Structure and Interpretation of Computer Programs](https://www.goodreads.com/book/show/43713.Structure_and_Interpretation_of_Computer_Programs)
 - :page_facing_up: [Thirteen Ways of Looking at a Turtle](https://fsharpforfunandprofit.com/posts/13-ways-of-looking-at-a-turtle-3/)
 - :scroll: [Programming Paradigms for Dummies: What Every Programmer Should Know](https://www.info.ucl.ac.be/~pvr/VanRoyChapter.pdf)
+- [Learn X in Y Minutes](https://learnxinyminutes.com/)  
+  Learn the basics of a language in a highly condensed way.
+- [Hyperpolyglot](http://hyperpolyglot.org/)  
+  Compare commonly used features of more or less similar languages side-by-side. Helps you to jump Python<->Ruby, Ocaml<->Haskell, etc.
 - :page_facing_up: [Pomodoro for Programmers](http://www.metadevelopment.io/pomodoro-for-programmers/)
 
 ### Career