Of the many blogs born last May, Patent Troll Tracker seemed as innocuous as any. Its focus: the obscure but controversial subject of "patent trolls," a derogatory term used to describe businesses that make money by purchasing patents and then suing big companies for infringement. The author was clearly no fan of the practice, but his or her identity was a mystery. The "about me" section of the blog noted that the writer was simply "a patent lawyer trying to gather and organize information about patent litigation." Through regular, copious posts, Troll Tracker quickly drew a devoted following in patent law circles, even among those who disagreed with its point of view. What readers didn’t know, however, was that the blogger was Rick Frenkel, in-house patent counsel at Cisco Systems (CSCO), the Internet infrastructure giant.