I was prompted to write this when I observed someone the other day who was sitting in the same training as me taking notes in a self-addressed email. No offense to people who do this, but W. T. F. How are you going to keep track of that email among the dozens/hundreds you receive every single day?
I take a lot of notes for research, certification study, and training. I use MediaWiki for almost all of these notes. Here's why.