Surfing the Internet carries all sorts of minor hazards, including pop-up ads, vitriolic bloggers and time-wasting videos. As of last week, it also carries one that is anything but minor: the threat of criminal prosecution. That’s the implication of the jury verdict in the case of Lori Drew in the infamous MySpace case. The Missouri mother was convicted of three federal misdemeanor charges for setting up a MySpace account to masquerade as a 16-year-old boy and exchange messages with Megan Meier, who killed herself after “Josh Evans” spurned her.