I'd like to be able to post an image in more than one category (uploading/storing only once, of course). What do you think, is that a good idea, and why or why not? I'd like to be able to use the categories to specify both subject matter and technique (seperately) for a single image. Perhaps one category per hyper-category? One subject, one mode, one technique?

This could help with that lack of description problem, I think.