What about maintaining a list of "last 24 hours" "most searched / mentioned in the news" terms for them to autocomplete via jQuery in the search box , a la Goog

What about maintaining a list of "last 24 hours" "most searched / mentioned in the news" terms for them to autocomplete via jQuery in the search box , a la Google Instant ? That way you could get informed about popular terms in the last 24 hours you didn't even notice.