Elegant utility in the New York Times

When I posted my previous entry, I noticed a surprising, wonderful and useful feature on <http://nytimes.com> . Select any phrase in an article, and a question\-mark icon comes up. Click on the icon and a search is run in the Times site for the phrase that you selected. Brilliant, easy and very well implemented. This is elegant utility.  I use Webkit (Safari), but I also tried it in Camino, so it ought to work in Firefox as well