As Paul Thurrott of Paul Thurrott’s WinInfo found out, this sort of thing can get old in a hurry. While typing up his review of Office XP (using Word 2002, of course), Mr. Thurrott typed the word “nice.” Up popped a smart tag offering to book a flight to Nice, France using Microsoft’s Expedia website. When he typed the word “long,” up popped a smart tag from ESPN offering more information on Oakland Athletics centerfielder Terrence Long. As Thurrott put it, “Folks, this is lame.”
http://www.alistapart.com/articles/smarttags/

I thought public outrage had killed smart tags, but if you give them an inch they'll take a mile.