A Zettelkasten is a personal tool for thinking and writing. It has hypertextual features to make a web of thoughts 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.

Just stumbled upon this, I probably won't use it because I have my own system, but I thought it was something interesting for maybe someone else or discussion, or that I might find some things in it I like that I could adapt