[jasonmp85]

Maybe it's just that I use packagecloud and follow people in their circle on Twitter, but Joe Damato is the CEO and founder: https://twitter.com/joedamato

I'm under the impression that he may also write a lot these himself? Not entirely certain, though.

[jcdavis]

Pretty sure he writes all of the linux internals posts. He also has a bunch of great ones on his blog http://timetobleed.com/