ing technological threats and opportunities in wireless data services. Technological Forecasting and Social Change, 70(1), 1-20, 2003. 16. Daim, T., Zhang, J., and Choi, C. Exploring diffusion of mobile data services, In Encyclopedia of E-Business Development and Management, Lee (Ed.), IGI Press, 2010, pp. 325-334. Chapter 14 Participatory Immigration Policy-Making and Harmonization Services Based on Collaborative Web2.0 Technologies Athanasios Karantjias, Nineta Polemi, and George Pentafronimos Contents 14.1 Introduction 14.2 Rationale 14.3 Collaborative Immigration e-Services 14.3.1 Issues and Requirements 14.3.2 Immigration Policy2.0 Services 14.4 Immigration Policy2.0 Platform 14.5 Conclusions Acknowledgments References Service Delivery Platforms 14.1 Introduction Nowadays, mobility constitutes a basic principle when considering people, infra- structures, and services under the light of globalization and free movement. Also, the right of free movement represents one of the fundamental civil liberties and it is one of the main objectives of the European Commission (EC) Treaty playing a vital role for the achievement of a single European market. Correspondingly, European Union (EU) governmental organizations facilitate legal immigrants to move freely or seek employment within the EU [1], while at the same time are seek- ing effective ways of monitor, trace, and audit movement and employment of illegal immigrants. Furthermore, the European Council of December 15-16, 2005 under- lined the need for a global approach based on concrete actions and decided to allocate up to 3% of the relevant financial instruments to intensify financial assis- tance in areas concerning or related to migration. On the other hand, existing organizational, legal, technological, societal, and political differences in the way EU Member States adopt migration policies, is a serious obstacle to the effective monitoring and management of immigration flows [2-4]. Fortunately, the entry in the ICT Society constitutes a basic strategic choice b