Around the world, governments are struggling to pin down the repercussions of boundary-pushing online speech, whether it's a Facebook post mocking a repressive regime or a racist Tweet. As it becomes easier to share opinions online, it's also easier and easier to get caught saying the wrong thing.
Campaign to put Jane Austen's face on £10 note leads to online harrassment
After he posted on a satirical Facebook page while studying abroad, Yashar Khameneh's father was arrested by the Iranian security services
A South Korean man could be facing up to seven years in jail for ironically retweeting a message from the North Korean government's Twitter feed. Praising North Korea is illegal in the South.