Unless it's been cleaned up significantly, I don't really like the database that Urton has (as of ~2-3 years ago). It is a great resource, but I'd have to spend a few weeks trying to chew out the inconsistencies if I were to be able to use it in a way that I would be comfortable analyzing. Much of the text data is outright messy, which I guess is an artifact of hand-entry. Imagery alongside the data would be nice. Aside from that, the biggest thing that could probably be done to improve the data (at least to make it easier to process) is to develop one or more serialized string forms for cords instead of having solely a related table with individual knots.