> Yelp caught Google scraping their content with no attribution. ... A similar thing happened at a company I once worked for, called Genius. We sued Google for copying lyrics from our database into the OneBox; I helped prove that it was happening by embedding a hidden message into the lyrics, using a pattern of apostrophes that, in Morse code, spelled “RED HANDED.

Ah, the old aphorism, don't put anything on the web you don't want Google to take.