Have you caught the Bitcoin bug yet? What's so special about this virtual currency? Mainly, it's a currency that's not tracked, ensuring privacy, and only has value because people want to use it.
Bitcoin is a craze. And trends are dangerous, because they don't last. Do you really want to own the MySpace of virtual currency when the Facebook version comes along?
Regardless of the risks, Bitcoin enjoyed some milestones this year. Today's big idea explores Bitcoin's big year--progress and controversies.