In humanitarian crises, people affected by the unfolding events need more than physical necessities: they urgently need information. Since the 2004 tsunami in South East Asia, Internews has played a pioneering role in the field of humanitarian communications, working closely with local media and aid agencies to ensure that people affected by disaster have access to timely, reliable information in languages they understand. Internews Humanitarian Information Services (HIS) establish two-way communication channels between local media, aid providers and local people. These feedback loops provide valuable data that reflects the information environment during crisis and response, identifies rumors and misinformation, and provides humanitarians with real time information about gaps and shortcomings in the response.