diff --git a/README.md b/README.md
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@@ -30,6 +30,7 @@ An updated and curated list of selected readings to illustrate High Scalability,
 - [Books](#books)
 
 ## Principles
+* [Designs, Lessons and Advice from Building Large Distributed Systems - Jeff Dean](https://www.cs.cornell.edu/projects/ladis2009/talks/dean-keynote-ladis2009.pdf)
 * [On Efficiency, Reliability, Scaling - James Hamilton, VP at AWS](http://mvdirona.com/jrh/work/)
 * [Principles of Chaos Engineering](https://www.usenix.org/conference/srecon17americas/program/presentation/rosenthal)
 * [Finding the Order in Chaos](https://www.usenix.org/conference/srecon16/program/presentation/lueder)
@@ -483,12 +484,11 @@ An updated and curated list of selected readings to illustrate High Scalability,
 ## Interview
 * [Designing Large-Scale Systems](https://www.somethingsimilar.com/2013/01/14/notes-on-distributed-systems-for-young-bloods/)
 	* [My Scaling Hero - Jeff Atwood (Read it for Endorphins before Inteview, JK)](https://blog.codinghorror.com/my-scaling-hero/)
-	* [The Architecture Interview - Susan Fowler](https://www.susanjfowler.com/blog/2016/10/7/the-architecture-interview)
+	* [Software Engineering Advice from Building Large-Scale Distributed Systems - Jeff Dean](https://static.googleusercontent.com/media/research.google.com/en//people/jeff/stanford-295-talk.pdf)
 	* [Anatomy of a System Design Interview](https://hackernoon.com/anatomy-of-a-system-design-interview-4cb57d75a53f)
 	* [8 Things You Need to Know Before a System Design Interview](http://blog.gainlo.co/index.php/2015/10/22/8-things-you-need-to-know-before-system-design-interviews/)
 	* [Top 10 System Design Interview Questions ](https://hackernoon.com/top-10-system-design-interview-questions-for-software-engineers-8561290f0444)
 	* [Top 10 Common Large-Scale Software Architectural Patterns in a Nutshell](https://towardsdatascience.com/10-common-software-architectural-patterns-in-a-nutshell-a0b47a1e9013)
-	* [Google Pro Tip: Use Back-Of-The-Envelope-Calculations To Choose The Best Design](http://highscalability.com/blog/2011/1/26/google-pro-tip-use-back-of-the-envelope-calculations-to-choo.html)
 	* [How NOT to design Netflix in your 45-minute System Design Interview?](https://hackernoon.com/how-not-to-design-netflix-in-your-45-minute-system-design-interview-64953391a054)
 * [Explaining Low-Level Systems (OS, Network, Storage, etc)](https://www.palantir.com/how-to-ace-a-systems-design-interview/)	
 	* [OSI and TCP/IP Cheat Sheet (Short but Sweet)](http://jaredheinrichs.com/mastering-the-osi-tcpip-models.html)