Firebase

Firebase
https://www.firebase.com/how-it-works.html

Adding Custom JARs To A Maven Project

Mkyong - How To Include Custom Library Into Maven Local Repository?
(seems like one of the easiest techniques)
http://www.mkyong.com/maven/how-to-include-library-manully-into-maven-local-repository/

Guide to installing 3rd party JARs (Apache Maven Project)
http://maven.apache.org/guides/mini/guide-3rd-party-jars-local.html

Maven External Dependencies (another valid technique)
http://www.tutorialspoint.com/maven/maven_external_dependencies.htm

Stackoverflow Link:
http://stackoverflow.com/questions/5692256/maven-best-way-of-linking-custom-external-jar-to-my-project

Adding external/custom jars into Maven project
Excellent link, especially "Installing jar into local Maven repository".
http://softwarecave.org/2014/06/14/adding-external-jars-into-maven-project/
In case content changes, screenshot of important snippet here:

Virtual Hard Disk Link(s)

Virtual Hard Disk - Backup Emphasis
http://www.pcworld.com/article/2465848/virtual-hard-drives-the-it-pro-trick-that-lets-you-back-up-your-data-for-free.html

Virtual Hard Disk (VHD) File Format (WikiPedia)
http://en.wikipedia.org/wiki/VHD_(file_format)

Windows 7 - How To Create a VHD of a Physical Hard Disk
http://www.sevenforums.com/tutorials/213652-vhd-create-physical-hard-disk.html

Docker

Docker
https://docs.docker.com/

Docker User Guide
https://docs.docker.com/userguide/

Docker YouTube Channel
https://www.youtube.com/user/dockerrun

Quoting from the Docker website:
https://www.docker.com/whatisdocker/

"Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications."

WikiPedia Docker Entry
http://en.wikipedia.org/wiki/Docker_(software)

YouTube Docker Networking
https://www.youtube.com/watch?v=uq8ZEYEYk1Q