After the earthquake of 6 April 2009, the citizens of L'Aquila and the near provinces suffer many discomforts due to difficulties of collecting information they need to come back to a normal life. Most buildings in municipality and province have been damaged or fell down so it's difficult to collect information from this structures. In this paper we discuss about the social and organizational needs of the L'Aquila citizens after the earthquake. We describe how an information system can help population to have an active part in reconstruction process supporting the development of a innovative social network. Furthermore this system acting at a social level can help the population to recover the shock caused by the loss of civil infrastructures and productive fabric, and to retie the broken social and productive links according with the sensemaking approach.