GitHub Service Outage (github.com)
New submitter thebigjeff writes: Beginning at around 7:30pm EST on 1/27/2016, GitHub's core services have been offline. Most repositories and other functionality is inaccessible. The status page is calling it a "significant network disruption."
More from The Register: GitHub falls offline, devs worldwide declare today a snow day.
It is decentralised, I was still able to commit changes to my repo and carry on as normal. What I couldnt do was use GitHub.
GitHub has value adds which make it a nice thing to use - its an off site repo for backup, it has a nice PR and issue handling system, it has nice metrics, it has commit hooks, it acts as a good point for CI service to integrate with automatically (alternatives being you either have to handle CI locally, manually push changes to a CI repo, or expose a git repo somehow so a CI service can grab checkins and build them).
So I couldn't push my changes to GitHub and my CI service didn't run new commits for a few hours. Not to worry, its already caught up with the back log.
Do not confuse GitHub with git - the two are entirely different. GitHub could use CVS and still have all the value adds, it would just use a shit source code management system.