...Abstract This chapter analyses the Norwegian Twitter-sphere during and in the aftermath of the terrorist attack in Norway on 22 July 2011. Based on a collection of 2.2 million tweets representing the Twitter-sphere during the period 20 July–28 August 2011, the chapter seeks answers to how...

...Abstract 22 July 2011, saw the biggest domestic terror event in Norway since World War II. On this day, a right-wing terrorist placed a bomb in front of the Norwegian government building, where the prime minister had his office at the time. Later, the same perpetrator dressed up as a policeman...

...Abstract This chapter summarises the findings of a case study on social media activity during the 22 July 2011 terrorist attacks in Norway. Based on these findings and on theories and previous research on the role of social media in situation awareness (SA) configuration during crisis situations...