“Footnotes”
I try to provide amplifying information where it may be needed. Just like in your old school reports, many times I’ll do this by putting a little elevated symbol (superscript) at the end of a thought. Instead of looking at the bottom of the page for a matching number, now you can just click on the symbol and be automatically transported to the appropriate reference material. Since I no longer need numbers, I’ve replaced them with the following: “A” means you will be sent to an article on the Web confirming my remark, “B” will be a previous blog post, “C” sends you to one of my side comments, “D” means a definition, and “E” means something providing extra information. These symbols may be followed by a number if I need to refer to the reference again later.
I could also use inline notes (click on the gray-highlighted line) or traditional hyperlinks (click on the underlined words).