The כלי Database: Utensils in the Hebrew Bible from Het Oudtestamentisch Werkgezelschap (the Dutch and Flemish society of Old Testament scholars) looks really excellent a great source of information on all those awkward terms that refer to various sorts of tool or implement. Unfortunately the first term I looked up מִזְרָק from Am 6:6 does not appear to have been entered yet :( but the list is already impressively long.
The format is a series of PDF files, which allows the appearance to be controlled, but makes usage somewhat less easy and reuse much less easy compared to XML and CSS, but it will have made production easier :) It is sad that there are few or no illustrations. At a time when images are getting easier to find and permission to use more likely to be freely given. However, entries have a section pointing readers to illustrations in reference works in their library.
In short this seems a really useful tool, and one we can be grateful they are publishing in such an open fashion. It also offers an interesting set of compromises between traditional forms and the new medium. It will be fascinating to see over coming decades how many and which such compromises continue to be made, representing what is culturally important about print. For example in this case the physical layout of print with page and line breaks was deemed significant.
HT: Jim West