From c97dfa409ee3f10a234afb86a99957aba860fff7 Mon Sep 17 00:00:00 2001
From: andijh92 <andijh92@web>
Date: Tue, 20 Dec 2016 15:03:11 +0100
Subject: added link to free online course and free textbook

---
 documentation.mdwn | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'documentation.mdwn')

diff --git a/documentation.mdwn b/documentation.mdwn
index 263be828..bfdaa839 100644
--- a/documentation.mdwn
+++ b/documentation.mdwn
@@ -25,8 +25,8 @@ architecture.  Yes, really.
 
 ## Operating Systems Basics
 
-Books.  Etc.
-
+You can find good free, self-paced online courses about operating systems on <https://www.udacity.com/> .
+A free textbook about operating systems is called [Operating Systems: Three Easy Pieces](http://pages.cs.wisc.edu/~remzi/OSTEP/).
 
 ## GNU/Hurd System Architecture
 
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