Fig (Fast, isolated development environments using Docker) -- http://www.fig.sh
Shutit (a tool for building and maintaining complex Docker deployments) by @ianmiell
FuGu (a docker run wrapper without orchestration) by @mattes
GoSu ("run this specific application as this specific user and get out of the pipeline" -- entrypoint script tool) by @tianon
ns-enter (no more ssh, enter name spaces of container) by @jpetazzo
Squid-in-a-can (in case of proxy problem) by @jpetazzo
docker-gen (Generate files from docker container meta-data) by @jwilder
dockerize (Utility to simplify running applications in docker containers) by @jwilder
registrator (Service registry bridge for Docker) by @progrium
Boot2Docker (docker for OSX and Windows) -- http://boot2docker.io/
OctoHost (Simple web focused Docker based mini-PaaS server. git push to deploy your websites as needed) by @octohost

Docker Registry (Registry server for Docker (hosting/delivering of repositories and images))

Docker Registry Web (A web UI for easy private/local Docker Registry integration) by @atc-
DockerUI (DockerUI is a web interface to interact with the Remote API.) by @crosbymichael

Shipyard (Composable Docker Management) -- http://shipyard-project.com/
Panamax (Docker Management for Humans) -- http://panamax.io/
Flynn (A next generation open source platform as a service (PaaS)) -- https://flynn.io/
Deis (Your PaaS, your rules) -- http://deis.io/
Gaudi (Gaudi allows to share multi-component applications, based on Docker, Go, and YAM) -- http://gaudi.io/
CoreOS (Linux for Massive Server Deployments) -- https://coreos.com/
Dokku (Docker powered mini-Heroku in around 100 lines of Bash) by @progrium
- dokku-alt (Dokku fork with Dockerfile support, database plugins, ACL and more)
cAdvisor (Analyzes resource usage and performance characteristics of running containers)
Ansible - manage docker containers
Launch Docker container on Mesos (Docker plus Mesosphere provides an easy way to automate and scale deployment of containers in a production environment.)
Marathon (Marathon is a private PaaS built on Mesos. It automatically handles hardware or software failures and ensures that an app is "always on".)
SerfService orchestration and management tool. by @hashicorp
Flocker (Flocker is a data volume manager and multi-host Docker cluster management tool) by @ClusterHQ

Weave (The Docker network) -- Weave creates a virtual network that connects Docker containers deployed across multiple hosts.

LogJam (Logjam is a log forwarder designed to listen on a local port, receive log entries over UDP, and forward these messages on to a log collecton server (such as logstash).)

docker-consul by @progrium
etcd: A highly-available key value store for shared configuration and service discovery
Docker Grand Ambassador This is a fully dynamic docker link ambassador. + Article

Slides

Videos

Orchestrating Docker containers in production using Fig (7:11)
Development Environments with Fig by Aanand Prasad (17:58)
Docker in Production by @jpetazzo (36:05)
Docker: How to Use Your Own Private Registry (15:01)
Contributing to Docker by Andrew "Tianon" Page (InfoSiftr) (34:31)
Performance Analysis of Docker - Jeremy Eder (1:36:58)
Docker and SELinux by Daniel Walsh from Red Hat (40:23)
Immutable Infrastructure with Docker and EC2 by Michael Bryzek (Gilt) (42:04)
Ansible and Docker HP (32:38)
Run Any App on Mesos on Any Infrastructure Using Docker (17:44)
Extending Docker with Plugins (15:21)