I'd like to be able to sort my Search results by type. I could accomplish this in a clunky sort of way by creating collections for all the main types I'd expect to find useful search hits in and then doing a separate search in each of those collections. But it would be much nicer to be able to browse the search results as grouped (and collapsible) by type.
It would also be useful to be able to sort by publication date for certain types of searches. More or less recently published results might be more relevant, for example, depending on what your type of research is.
Finally, for curiosity's sake, if you can throw it in as a freebie, it would be nice to be able to sort by last updated date, so I could check and see if any of the typos I've reported have been fixed in the latest resource updates so that I can go in and remove my "typo" highlighting. [:)]