When it comes to programming, which developers do you closely follow?
Please include blog/website/github links.
A couple of my favourites:
[TJ Holowaychuk](https://github.com/tj) - because he's a wizard. The number of premium open source projects he's been a part of, is just astounding.
[Dan Abramov](https://github.com/gaearon) - First hit on his redux talk, then drifted to his blog posts. I like his clarity of expressing the why's and how's.