diff --git a/README.md b/README.md
index 2999e6d..89f5787 100644
--- a/README.md
+++ b/README.md
@@ -195,6 +195,8 @@ A collection of awesome penetration testing resources, tools, books, confs, maga
 ### Security Courses
 * [Offensive Security Training](http://www.offensive-security.com/information-security-training/) - Training from BackTrack/Kali developers
 * [SANS Security Training](http://www.sans.org/) - Computer Security Training & Certification
+* [Open Security Training](http://opensecuritytraining.info/) - Training material for computer security classes
+* [CTF Field Guide](https://trailofbits.github.io/ctf/) - everything you need to win your next CTF competition
 
 
 ### Information Security Conferences