The Wall Street Journal ran what's become known around here as the "Factiva Cliche Index" today. (And lest you're wondering, just because Dow Jones now fully owns both brands doesn't mean we Factiva folk can walk right over to the editors and say "run this." Not that it hurts to be in the same building, or anything.)
Bottom line, this is a great example of text mining put to use to give information that single searches can't do. Clichés might be a fun example, but look for more hard-hitting ones coming soon.