Blake Hall
Fast and lightweight distributive version control
Branching
Rebasing/Merging
The old way: Email lists
Why has it gotten so popular?
One click and you have your own repository
Allows people to get a copy of the code, work on it, push it up, and then...
Probably the biggest reason for GitHub's success
Tracking for issues...duh
Popular for tracking bugs, questions, and feature requests
WebHooks: Enables Continuous Integration and Continuous Deployment
Static Site Hosting: This entire slideshow is on GitHub
Stars: Follow projects you care about