OK, that's a big statement to make, and an award I don't give out often. ("Coolest thing ever, that I've seen so far today" would probably be more accurate, and that's an award I give out at least once daily.)
Anyway, by now you should know that it's important to take time to tag your stories; however, keeping it simple is sometimes hard, as tag discipline falls apart in the face of long, wordy articles.
If you want to get to the meat of the story in a cool way, you could do a lot worse than working with Wordle. This tool, created by IBM researcher (and ex-They Might Be Giants drummer) Jonathan Feinberg, shows you exactly what your story is about.
For example, here's a Wordle-generated tag cloud of a recent story I wrote about Intel's green business practices.
Kind of easy to see what the highlights are, no?
(FYI Wordle works for resumes too. If you want to get a quick snapshot of your career, post your entire resume into the "create" box -- and be prepared to be boiled down to a set of meta-tags!)