Introduction to the Zettelkasten Method:

A Zettelkasten is a personal tool for thinking and writing. It has hypertextual features to make a web of thought possible. The difference to other systems is that you create a web of thoughts instead of notes of arbitrary size and form, and emphasize connection, not a collection.

Un muy interesante método de hipertexto usando papel. Gracias a Roberto Zoia por el dato.