A Few Thoughts on Cognitive Overload. (Thanks Rebecca.)

How to Make a Complete Map of Every Thought you Think. (Thanks Jerry.)

Via the above, The Curse of Xanadu:

It was the most radical computer dream of the hacker era. Ted Nelson's Xanadu project was supposed to be the universal, democratic hypertext library that would help human life evolve into an entirely new form. Instead, it sucked Nelson and his intrepid band of true believers into what became the longest-running vaporware project in the history of computing - a 30-year saga of rabid prototyping and heart-slashing despair.