I haven't ever seen Delicious before. I use Movie Collector from
COLLECTORZ.COM for my DVDs and VHS tapes. My daughter who is a school teacher uses their Book Collector software for her classroom library. It's a real time saver for my movies. When entering a new movie I can simply scan the barcode and have it lookup the movie and download everything from a choice of a dozen different sources. The result is an IMDB-like database. Keeping all 700 movies accessible is a challenge, but my youngest daughter works in the library and seems to enjoy keeping the shelves in order.
I haven't quite gotten to that point for my books yet and the Sony eBook Library program as feeble as it is, provides enough organization to keep things running smoothly.
PCH