Twitter is getting famous with its fast breaking news service. People inform each other via Twitter. One example from Van earthquake in Turkey. Most of people tweeted before the news was on TV. So, in this case, people positioned Twitter an informal news source. With this strategy, I think Facebook wants to be in the same place as Twitter leads. So, Mark Zuckerberg said Japan’s tsunami last year inspired him to seek more ways for his social network to help people hit by natural disasters. He believes Facebook can be used to help people in disasters keep in touch and provide them with crucial information.