By Teague Tysseling. As mentioned, I'm not sure what he's up to these days. He used to draw comics about mad science and the teaching thereof, but I can't find much of an online presence for him these days when I write this.
I find myself more and more preferring to reference people's Twitter and the like in these commentaries (as I might have retroactively mentioned in a previous commentary, I'm writing these out of order). Years later, the projects they want to highlight might change, where I previously might have directed people to might not be active (or even changed ownership or something), etc.
Granted, "years later" might seem like a small concern, but I can lose track of where all I've sent people, and that can get ouf of hand when it's time to spring clean these commentaries down the line.
What I can say about "The Teague", however, is that I remember him being a cool guy when I met him at Comic-Con, and he most definitely wore excellent hats.