esearch Centre of University of Piraeus) for their review and inputs. Special thanks to Dr. Stelios Pantelopoulos and the SLG team. References 1. Favell, A., The Europeanisation of immigration politics, European Integration online Papers (Eiop), 1998, 2(10). 2. Geddes, A., Still Beyond Fortress Europe? Patterns and Pathways in EU Migration Policy, Queen's Papers on Europeanisation, No. 4/2003. 3. Kostakopoulou, T., Invisible citizens: Long-term resident third resident third country nationals in the EU and their struggle for recognition, in R. Bellamy and A. Warleigh (eds.) Citizenship and Governance in the EU, London: Continuum, 2001, pp. 180-205. 4. Niessen, J., Overlapping interests and conflicting agendas: The knocking into shape of EU immigration policies, European Journal of Migration and Law, 2001, 3, 419-434. 5. Guiraudon, V., The constitution of a European immigration policy domain: A political sociology approach, Journal of European Public Policy, 2003, 10(2), 263-282. 6. Yan, Z., Enterprise Service Oriented Architecture (ESOA) Adoption Reference, in the Proc. of the IEEE International Conference on Services Computing, 2006 (SCC '06), September 18-22, 2006, ISBN: 0-7695-2670-5, p. 512. 7. Juffinger, A., Neidhart, T.H., Weichselbraun, A., Wohlgenannt, G., Granitzer, M., Kern, R., and Scharl, R., Distributed Web2.0 crawling for ontology evolution, in the Service Delivery Platforms Proc. of the 2nd International Conference on Digital Information Management, 2007 (ICDIM '07), October 28-31, 2007, Vol. 2, pp. 615-620, ISBN: 978-1-4244-1475-8. 8. Peers, S., Key legislative developments on migration in the European Union, European Journal of Migration and Law, 2002, 4, 339-367. van Harmelen, F., The semantic web: What, why, how, and when, IEEE Distributed Systems Online 1541-4922 copyright 2004, IEEE Computer Society, 2004, 5(3), 4. 10. Hendler, J., Web 3.0 emerging, IEEE Computer, 2009, 42(1), 111-113. 11. McFedries, P., The cloud is the computer, IEEE Spectrum, August 2008. 12. Ding, L., Finin, T., Joshi, A.,