[kbs666]

I don't separate out the information about races, or classes etc., by source. That seems counterproductive. If I or one of my players needs to look up any of the rules crunch on elves I don't want to try and remember what book the stuff is in.

I just have a single article on each race and each trait, or whatever, that comes from some sourcebook is marked with a snippet tag.

IOW have you actually used the organizational method you're advocating? It doesn't seem all that useful except for simply transcribing entire books into RW which ultimately isn't useful at all IMO.