diff --git a/README.md b/README.md
index 4ec707c..c2a0133 100644
--- a/README.md
+++ b/README.md
@@ -230,7 +230,8 @@ An organized reading list for illustrating the patterns behind scalable, reliabl
 	* [Diffy: Differencing Engine for Digital Forensics in the Cloud at Netflix](https://medium.com/netflix-techblog/netflix-sirt-releases-diffy-a-differencing-engine-for-digital-forensics-in-the-cloud-37b71abd2698)
 	* [Detecting Credential Compromise in AWS at Netflix](https://medium.com/netflix-techblog/netflix-cloud-security-detecting-credential-compromise-in-aws-9493d6fd373a)
 	* [Scalable User Privacy at Spotify](https://labs.spotify.com/2018/09/18/scalable-user-privacy/)
-	* [AVA: Audit Web Applications at Indeed](https://engineering.indeedblog.com/blog/2018/09/application-scanning/)	
+	* [AVA: Audit Web Applications at Indeed](https://engineering.indeedblog.com/blog/2018/09/application-scanning/)
+	* [TTL as a Service: Automatic Revocation of Stale Privileges at Yelp](https://engineeringblog.yelp.com/2018/11/ttl-as-a-service.html)	
 * [Distributed Messaging, Queuing, and Event Streaming](https://arxiv.org/pdf/1704.00411.pdf)
 	* [Cape: Event Stream Processing Framework at Dropbox](https://blogs.dropbox.com/tech/2017/05/introducing-cape/)
 	* [Druid: Event Stream Analytics at Walmart](https://medium.com/walmartlabs/event-stream-analytics-at-walmart-with-druid-dcf1a37ceda7)