diff --git a/README.md b/README.md
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+++ b/README.md
@@ -68,7 +68,7 @@ I've found these books incredibly inspiring:
 
 There are some free books available, including:
 
-* [Professional software development](http://mixmastamyk.bitbucket.org/pro_soft_dev/): pretty complete and a good companion to this page. The free chapters are mostly focused on software development processes: design, testing, code writing, etc. - and not so much about tech itself.
+* [Professional software development](http://mixmastamyk.bitbucket.io/pro_soft_dev/): pretty complete and a good companion to this page. The free chapters are mostly focused on software development processes: design, testing, code writing, etc. - and not so much about tech itself.
 * [List of free programming books](https://github.com/vhf/free-programming-books)
 
 ## Must-read articles
@@ -227,7 +227,7 @@ Articles
 
 ### Learning
 
-Learn how to learn! 
+Learn how to learn!
 
 * [How I Rewired My Brain to Become Fluent in Math](http://nautil.us/issue/40/learning/how-i-rewired-my-brain-to-become-fluent-in-math-rp): subtitled *the building blocks of understanding are memorization and repetition*.
 * [One Sure-Fire Way to Improve Your Coding](https://changelog.com/posts/one-sure-fire-way-to-improve-your-coding): reading code!
@@ -355,4 +355,4 @@ Resources
 * [KISS](https://en.wikipedia.org/wiki/KISS_principle)
 * [SOLID](https://en.wikipedia.org/wiki/SOLID_(object-oriented_design))
 * [GRASP](https://en.wikipedia.org/wiki/GRASP_(object-oriented_design))
-* [Make it run, make it right, make it fast](http://c2.com/cgi/wiki?MakeItWorkMakeItRightMakeItFast)
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+* [Make it run, make it right, make it fast](http://c2.com/cgi/wiki?MakeItWorkMakeItRightMakeItFast)