Social Media in Government Services: An Introduction -- Use of Social Media for Internal Communication: A Case Study in a Government Organisation -- Social Media Policy in Turkish Municipalities: Disparity between Awareness and Implementation -- Detecting Bursty Topics of Correlated News and Twitter for Government Services -- Gamification on the Social Web -- A Lexical Resource for Identifying Public Services Names on the Social Web -- Multi-Hazard Detection by Integrating Social Media and Physical Sensors.