Googlewhack Honeypot. Sounds like a Motown hit.
Darren from LinkMachineGo, an old school blogger, guessed Belle de Jour's identity soon after her blog started. How? Pre-Belle, Brooke Magnanti ran an obscure Robotwisdom-style link blog and wrote in a few other online forums and Darren recognized the writing style. Not only didn't Darren tell Magnanti or anyone else, he even set up a clever Googlewhack honeypot to detect people searching for her secret identity and tipped Magnanti off that The Daily Mail was sniffing around.