Rename "Library Catalog" field to something like "Catalog or Database"
I've just participated in a discussion about how scholars never cite the databases they've used to retrieve online versions of print articles, which definitely seems true to me. Obviously, it's really the citation styles that need to be revised so as to encourage citing the database, but I've also noticed that Zotero puts the database name (Google Books, WorldCat, JSTOR, Wiley Online Library) into a field called "Library Catalog" (for item types Book and Journal Article, for instance) which seems slightly wrong. If that field were renamed something a bit broader, like "Catalog or Database," or maybe even "Catalog, Database, or Index," or maybe even just "Database" (after all, an online catalog is a database) it might help encourage people to cite their databases.
Personally, I'm quite opposed to citing databases, but I agree with Amanda that the "Library Catalog" field is misleading and should be renamed. Of the suggested titles I like "Catalog or Database" best, but I'm not 100% happy with the "or".
It'd be great to hear from someone else on this - making the actual change is fairly trivial, but a pull request on the Zotero code is a rather lonely place to discuss labels (since only ~7 people look at those in an optimistic scenario...).
While we're on the topic of labels, I'd like to do something about Archive and Archive Location. TBH, I am still confused when this is used. The actual field labels might be correct, but I think we need to add little help pop-ups that would explain what these are for. Same for series, series title, series text (unless well phase them out entirely?)
http://citationstylist.org/proofsheets/cases/
The content could be migrated to another field name, but this seems to serve pretty well for this category of content.
A similar case in academic publishing might be ArXiv -- how is that handled? I agree with adamsmith that it's not very sensible to cite aggregator databases. In that case the content is static and easily discoverable through various channels, and including the database in the cite doesn't amount to much more than publicity for the service.