This article aims to provide an overall picture of the use of Twitter as a significant social media tool by mayors in Turkey and to investigate, using content analysis and tweet categorization, whether Twitter is used by mayors in Turkey to offer better public services. Thus, this study focuses on the impact of Twitter in Turkey on transparent, participatory and citizen-oriented local public services. Our analysis has revealed that mayors in Turkey use Twitter especially to share information, send personal messages and share their location and activities. The use of Twitter for transparent, participatory and citizen-oriented public service delivery is not common among mayors. Twitter is adopted and used by mayors mostly for the purposes of self-promotion and political marketing in Turkey. (C) 2013 Elsevier Inc. All rights reserved.