Back in January, I saw author Joseph Menn speak at a conference, telling us tails of tracking cybercrime from the US to Russia and everywhere in-between. I found the topic (and his telling of these tales) very compelling, scary and amazing.
In his book "Fatal System Error," he shares stories from various good guys chasing after the bad guys (people like Andy Crocker and Barrett Lyon) and the history of the underground cybercrime economy. Crime is big business and international cybercrime is no exception.
I found it very interesting, and a bit depressing. Specifically, how hard it is to successfully bring the worst offenders to justice, due to jurisdictional issues, the ease of which criminals (and internet traffic) can cross international borders, and the (not too surprising) allegations of police/government protection in some countries.