[donald1x]

Wow, Tag(Keyword) vs Folder (Category).

That's an entire battlefield in and of itself.

I used to be quite anal in putting my files in folders by category, and subcategory. I drove my team insane when I designed our office's cloud-based shared document system.

Then, personal desktop search engine comes along, and hey, this tag stuff is so much more convenient.

The issue with single hierarchy folder based category is that: it is a SINGLE hierarchy of classifications, whereas a book can be: Science Fiction, SciFi Fantasy, Cyberpunk, with Romance, Comedy, about Sherlock Holmes, in Pern Series...

(or in the office: Research article / News about Internet, Commerce, Social Network, impact on Third World, Education, by BCG, for Project XYZ)

With a single hierarchy, you must make sure how you classify when you file and the way you think when you want to retrieve is the same way. and often enough, that's not true.

Tag (and an adequate search engine like what Calibre has) makes filing simple, and retrieval quite easy, BUT, inconclusive. (as you can never tell if the document doesn't exist, or if you just tag it wrong...)

So, I recommend, use TAG at least. and put in a nice folder hierachy if you have time.

but thats just me