1. Julian Assange
The Australian who turned a precocious hacking habit into an activist crusade for freedom of information founded WikiLeaks in 2006. Julian Assange and his site rose to prominence with the release of classified documents revealing government corruption, civilian casualties in the Iraq and Afghan wars, and the full text of Sarah Palin’s emails. The organization’s most recent coup: publishing internal emails from global intelligence firm Stratfor. For his part, Assange remains holed up in Ecuador to avoid extradition to Sweden, where he’s accused of sexual misconduct. He launched a talk show in April.