diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -70,7 +70,8 @@
 - [Stacked Diffs: Keeping Phabricator Diffs Small](https://medium.com/@kurtisnusbaum/stacked-diffs-keeping-phabricator-diffs-small-d9964f4dcfa6)
 - [Parallel Implementations](https://www.gamasutra.com/view/news/128325/Opinion_Parallel_Implementations.php)
 - [The Pragmatic Programmer: From Journeyman to Master](https://www.amazon.com/Pragmatic-Programmer-Journeyman-Master/dp/020161622X)
-- [Advantages of monolithic version control](https://danluu.com/monorepo/)
+- [Monorepo: Advantages of monolithic version control](https://danluu.com/monorepo/)
+- [Monorepo: Why Google Stores Billions of Lines of Code in a Single Repository](https://www.youtube.com/watch?v=W71BTkUbdqE)
 - [The importance of fixing bugs immediately](https://youtu.be/E2MIpi8pIvY?t=16m0s)
 - [Slow Deployment Causes Meetings](https://www.facebook.com/notes/kent-beck/slow-deployment-causes-meetings/1055427371156793/)
 - [Good Work, Great Work, and Right Work](https://forum.dlang.org/post/q7u6g1$94p$1@digitalmars.com)