Well this is uber geek territory, but I've used Mind map to draft a taxonomy for astrophotography and night sky photography.
I'm moving more to SmugMug for my online gallery and needed to think about the structure of categories and albums and this just happened along the way. I also hope to use keywords in Lightroom more; my previous attempts have been very ad hoc so I'm hoping a taxonomy like this will give some structure to a keyword set.
A small image is attached or can look at the mind map itself:
http://www.mindmeister.com/291899488...raphy-taxonomy
I'm interested in any comments/feedback. I'm not bad at generating ideas for how things could/should be organised but I'm not so good at actually using them to keep things organised. Here's hoping this helps a little at least!
Phil