diff --git a/README.md b/README.md
index dbf7f7a..9573805 100644
--- a/README.md
+++ b/README.md
@@ -147,6 +147,7 @@ An organized reading list for illustrating the patterns behind scalable, reliabl
 	* [Tradeoffs of Replicated Cache at Skyscanner](https://medium.com/@SkyscannerEng/the-tradeoffs-of-a-replicated-cache-b6680c722f58)
 	* [Avoiding Cache Stampede at DoorDash](https://blog.doordash.com/avoiding-cache-stampede-at-doordash-55bbf596d94b)
 	* [Location Caching with Quadtrees at Yext](http://engblog.yext.com/post/geolocation-caching)
+	* [Lightning fast in process caching with Pycache at Quora](https://engineering.quora.com/Pycache-lightning-fast-in-process-caching)
     * [HTTP Caching](https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching)
         * [Caching 404s Saved 66% On Server Time at The Onion](http://highscalability.com/blog/2010/3/26/strategy-caching-404s-saved-the-onion-66-on-server-time.html)
         * [Zynga Geo Proxy: Reducing Mobile Game Latency at Zynga](https://www.zynga.com/blogs/engineering/zynga-geo-proxy-reducing-mobile-game-latency)
@@ -774,6 +775,7 @@ An organized reading list for illustrating the patterns behind scalable, reliabl
 * [Scaling Counting Infrastructure at Quora - Chun-Ho Hung and Nikhil Gar, SEs at Quora](https://www.infoq.com/presentations/quora-analytics)
 * [Scaling Git at Microsoft - Saeed Noursalehi, Principal Program Manager at Microsoft](https://www.youtube.com/watch?v=g_MPGU_m01s)
 * [Scaling Multitenant Architecture Across Multiple Data Centres at Shopify - Weingarten, Engineering Lead at Shopify](https://www.youtube.com/watch?v=F-f0-k46WVk)
+* 
 
 ## Book
 * [Big Data, Web Ops & DevOps Ebooks - O'Reilly (Online - Free)](http://www.oreilly.com/webops/free/)