The intended readers are those who have either taken a first college course in probability, or who have read one of the many popular science style books on probability. I try not to repeat too much of that material, instead choosing less familiar and less readily available (at a non-technical level) topics. My style goal is to be informal and succinct, to give a self-contained one page account of a conceptual insight. If it can be backed up by math, so much the better, but I just outline the math result without doing the math. A brief "Footnotes" section is sometimes added.
The organization of pages below is rather arbitrary. These are all "top level" pages that can be browsed independently. Some lead to subsidiary pages not listed here.