diff --git a/README.md b/README.md
index 75455a5..8cf87cc 100644
--- a/README.md
+++ b/README.md
@@ -153,6 +153,7 @@ This list is not exhaustive, contribute to make it so: add your docker resource
 * [Dockly](https://github.com/swipely/dockly): Dockly is a gem made to ease the pain of packaging an application in Docker.
 * [docker-volumes](https://github.com/cpuguy83/docker-volumes) (Docker Volume Manager) by [@cpuguy83](https://github.com/cpuguy83)
 * [dockerfile_lint](https://github.com/redhataccess/dockerfile_lint) (A rule-based 'linter' for Dockerfiles) by [@redhataccess](https://github.com/redhataccess)
+* [powerstrip](https://github.com/clusterhq/powerstrip) (A tool for prototyping Docker extensions)
 
 ## Continuous Integration / Continuous Delivery
 * [Drone](https://github.com/drone/drone) - https://drone.io/