Why Git and GitHub

Why use GitHub?
- It's your online resume/CV for code and a great way to showcase your work. Many recruiters and employers will look for your GitHub account and expect to see a long and active commit history. GitHub is arguably the most popular cloud repository in use right now. With Microsoft's acquisition of it, it couldn't be on more solid ground. Want to see what's popular? Check out Gitstar Ranking.
Getting Started
- Free Udacity Courses on Git/GitHub - good to get you up and running quickly:
  - Version Control with Git - Learn to track and manage changes
  - GitHub & Collaboration - Learn to build projects collaboratively
- Q&A:
  - StackOverflow - Git
  - StackOverflow - GitHub
- References:
  - Pro Git, 2nd Edition - Free Online Book, Comprehensive Overview of Git/GitHub
Brief Overview
- In a nutshell, GitHub actually encapsulates two different things. First, it's built on git, a source code revision control system. Git is a system, a protocol, and a command line utility (vaguely like ftp or ssh/scp). Second, GitHub is a public cloud repository that leverages git as its underlying source code revision control system. As a contrast there are other revision control systems like subversion and mercurial, and other popular public cloud repositories like Bitbucket who supports both git and mercurial. See also List of version-control software, Comparison of version-control software, Comparison of source-code-hosting facilities.

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