This post includes links to things I pay for. There are no affiliate links. I get nothing if you buy them. This is simply a post about tools that I have found userful. I’ve made attempts at Mind/Brain maps years…maybe decades. On notebook paper, notecards, various diagramming-arrow-pointy software applications, etc. I have many areas of interest, which are mainly self containted but sometimes they cross over and that’s really cool when it happens(an old project around the NBA, data science and a statistics course I was taking comes to mind).