Papercrafting is one of the top areas I enjoy as a hobbyist in 3D, there’s no major commercialism to it and the majority of artists that pursue it do so because they’re passionate about their work. The more modern / urban side of papercrafting is very closely related to the designer toy craze that’s been popular for a while.
From a 3D perspective it’s a lot like low-poly video game design to build a good base mesh with hi-res textures to add detail. The process of using Pepakura is similar to UV unfolding and enforces good modeling skills since a bad model means you’ll spend hours unfolding it in Pepakura
Here are some links I’ve collected over the last year or so:
Marshall Alexander *** Awesome designer
Cutting out models can be really intense on a model with heavy detail, so some people resort to getting an automated cutting machine like a CraftRobo that is supported by a version of Pepakura that adds registration marks and guidelines for the cutting process.