diff --git a/README.md b/README.md
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+++ b/README.md
@@ -144,17 +144,18 @@ Contributions are always welcome!
 	* [Why Uber Engineering Switched from Postgres to MySQL](https://eng.uber.com/mysql-migration/)
 	* [Handling Growth with Postgres at Instagram](https://engineering.instagram.com/handling-growth-with-postgres-5-tips-from-instagram-d5d7e7ffdfcb)
 * [Time Series Database (TSDB)](https://www.influxdata.com/time-series-database/)
-	* [Time Series Data: Why and How to Use a Relational Database instead of NoSQL - by Mike Freedman, Princeton University](https://blog.timescale.com/time-series-data-why-and-how-to-use-a-relational-database-instead-of-nosql-d0cd6975e87c)
+	* [Time Series Data: Why and How to Use a Relational Database instead of NoSQL](https://blog.timescale.com/time-series-data-why-and-how-to-use-a-relational-database-instead-of-nosql-d0cd6975e87c)
 	* [Beringei: High-performance Time Series Storage Engine at Facebook](https://code.facebook.com/posts/952820474848503/beringei-a-high-performance-time-series-storage-engine/)	
 	* [Atlas: In-memory Dimensional Time Series Database at Netflix](https://medium.com/netflix-techblog/introducing-atlas-netflixs-primary-telemetry-platform-bd31f4d8ed9a)
 	* [Heroic: Time Series Database at Spotify](https://labs.spotify.com/2015/11/17/monitoring-at-spotify-introducing-heroic/)
 	* [Building a Scalable Time Series Database on PostgreSQL](https://blog.timescale.com/when-boring-is-awesome-building-a-scalable-time-series-database-on-postgresql-2900ea453ee2)
 * [HTTP Caching (Reverse Proxy, CDN)](https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching)
 	* [Reverse Proxy (Nginx, Varnish, Squid, rack-cache)](https://www.mertech.com/overview-reverse-proxying/)
-	* [Stop worrying and love the proxy](https://blog.turbinelabs.io/how-we-learned-to-stop-worrying-and-love-the-proxy-89af98fabaf8)
+	* [Stop Worrying and Love the Proxy](https://blog.turbinelabs.io/how-we-learned-to-stop-worrying-and-love-the-proxy-89af98fabaf8)
 	* [Playing HTTP Tricks with Nginx](https://www.elastic.co/blog/playing-http-tricks-nginx)
-	* [Using CDN to improve site performance at Coursera](https://building.coursera.org/blog/2015/07/09/improving-coursera-global-site-performance-a-head-to-head-cdn-battle-with-production-traffic/)
+	* [Using CDN to Improve Site Performance at Coursera](https://building.coursera.org/blog/2015/07/09/improving-coursera-global-site-performance-a-head-to-head-cdn-battle-with-production-traffic/)
 	* [Strategy: 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)
+	* [Increasing Application Performance with HTTP Cache Headers](https://devcenter.heroku.com/articles/increasing-application-performance-with-http-cache-headers)
 * [Concurrency](https://lambda.grofers.com/open-sourcing-codon-workflow-framework-for-building-aggregator-apis-f8e591a158b4)
 	* [Message-Passing Concurrency](https://link.springer.com/chapter/10.1007/978-3-642-35170-9_11)
 	* [Software Transactional Memory](https://dl.acm.org/citation.cfm?id=3037750)