Sorry for the delay, I didn't see the reply because it wasn't "leafward" of my response but on another branch so the software didn't point me back here.

I read Foucault's discussion of the hypomnemata. If you are interested in looking at this, you can find it on page 364 of the 1st edition of the Foucalt Reader, edited by Paul Rabinow, Pantheon Books.

Thanks, I appreciate the reference! Its in my system now, with a link back to here. It sounds like I do similar things already though not optimized for finding my mental gems. My working processes tend to be more "coral like" - with waves of growth and death and re-use of ancient content, but without a strong habit or theory to keep things stably repeating. Still, I like to see how other people tend their own thought gardens out of pure curiosity even when I don't apply very much.

Kimbro's system sounds like an impractically expensive version of yours, but there are similar themes. He prefers the flexible utility of physical note taking systems, uses four-color pens to track different phases and attitudes toward writing and re-writing, encourages ideogram invention, has mutating archival/mobile distinctions, and has numbering/sorting/reference systems so that the structure can be adjusted on the fly.