I just saw this Spoiler Alert project on The Daily What and clicked through.
Since I was there anyway, I clicked through to his main page, and was quite impressed by the number of projects of his that I already know about. I've seen three, which is impressive since I'm not following him or any of his friends. What I mean by this is that I've seen just about everything Poster Child has done in the last few years, but only because Ryan North (Dinosaur Comics) always gives him shout-outs.
An example of a similar level of familiarity but for the opposite reason is Flat Chested Mama. I only know about her work (and lots of it) because everyone all over the place posts about how much they hate it.