[dvs0826]

I took a look at Zotero as per your suggestion, and while it seems like a pretty awesome tool which I'll indeed make use of, I'm not sure how well it works for my current rather large collection of journal articles. To make full use of it you need an internet connection since it references files online, and I often read articles where no internet connection is available (for example while on a plane or in a hotel).

I realize that adding the columns mentioned above would be a little domain specific, so what about user-defined columns, which is just a general case of what I proposed above and would be usable by pretty much everyone? The additional schema / column data could just be stored in the metadata database rather than in the actual file. Not sure with the current database format how feasible / how much work that is but it seems useful to a wide audience.