diff --git a/README.md b/README.md
index 1d741ea..bd9ccd3 100644
--- a/README.md
+++ b/README.md
@@ -193,7 +193,8 @@ An updated and curated list of selected readings to illustrate High Scalability,
 		* [Migrating Mountains of Mongo Data at Addepar](https://medium.com/build-addepar/migrating-mountains-of-mongo-data-63e530539952)
 		* [Couchbase Ecosystem at LinkedIn](https://engineering.linkedin.com/blog/2017/12/couchbase-ecosystem-at-linkedin)
 		* [SimpleDB at Zendesk](https://medium.com/zendesk-engineering/resurrecting-amazon-simpledb-9404034ec506)
-	* [Graph Databases](https://www.ibm.com/developerworks/library/cl-graph-database-1/index.html)		
+	* [Graph Databases](https://www.ibm.com/developerworks/library/cl-graph-database-1/index.html)
+		* [Handling Billions of Edges in a Graph Database](https://www.infoq.com/presentations/graph-database-scalability)		
 		* [Neo4j case studies with Walmart, eBay, AirBnB, NASA, etc](https://neo4j.com/customers/)
 		* [FlockDB: Distributed Graph Database for Storing Adjancency Lists at Twitter](https://blog.twitter.com/engineering/en_us/a/2010/introducing-flockdb.html)
 		* [JanusGraph: Scalable Graph Database backed by Google, IBM and Hortonworks](https://architecht.io/google-ibm-back-new-open-source-graph-database-project-janusgraph-1d74fb78db6b)