The Chronicle of Higher Education has an interesting article on notes, which, as the article points out, is something we all constantly interact with and seldom discuss. Here’s a bit on digital note-taking systems:
Digital note-taking systems were a direct outgrowth of the early hypertext knowledge-representation systems. I had my first encounter with one of those when I arrived at the Xerox Palo Alto Research Center in the mid-1980s. In addition to their better-known innovations (the laser printer, the WYSIWYG text editor, the graphical user interface, the Ethernet), the center’s researchers developed the system Notecards. It was a thing of wonder, back when the computer could still induce that feeling. You could create notecards containing text or graphics, sort them into file boxes, and link them according whatever relationship you chose (“source,” “example,” etc.), while navigating the whole network via an overview in a browser window. It was as close as you could come to a digital implementation of Placcius’s cabinet, freed from the material constraints of slips, hooks, and drawers and from the requirement that each slip fill only one slot in a network.
Finally, this line in the essay made me laugh: “The Post-it ranks as one of modern chemistry’s two major contributions to the work of annotation, as partial reparation for the highlighter pen, the colorist’s revenge on the printed page.”