Preface.- 1. Optimization in Designing Complex Communication Networks (F.S.H. Souza, G.R. Mateus, A.S. Cunha).- 2. Fitness-based Generative Models for Power-Law Networks (K. Nguyen, D.A. Tran).- 3. Double Pareto Lognormal Distributions in Complex Networks (Z. Fang, J. Wang, B. Liu, W. Gong).- 4. Laplacian Spectra and Synchronization Processes on Complex Networks (J. Chen, J. Lu, C. Zhan, G. Chen).- 5. Growing Networks driven by the Evolutionary Prisoner’s Dilemma Game (J. Poncela, J. Gomez-Gardenes, L.M. Floria, Y. Moreno).- 6. Defining and Discovering Communities in Social Networks (S. Kelley, M. Goldberg, M. Magdon-Ismail, K. Mertsalov, A. Wallace).- 7. Modularity Maximization and Tree Clustering: Novel Ways to Determine Effective Geographic Borders (D. Grady, R. Brune, C. Thiemann, F. Theis, D. Brockmann).- 8. Emergence and Structure of Cybercommunities (M. Mitrovic, B. Tadic).- 9. k-core Organization in Complex Networks (G.J. Baxter, S.N. Dorogovtsev, A.V. Goltsev, J.F.F. Mendes).- 10. Hardness Complexity of Optimal Substructure Problems on Power-Law Graphs (Y. Shen, D.T. Nguyen, M. T. Thai).- 11. Path Problems in Complex Networks (P. Ghosh, A. Sen).- 12. Optimized Design of Large-scale Social Welfare Supporting Systems on Complex Networks (J. Janacek, L. Janosıkova, L. Buzna).- 13. Optimal Flows in Dynamic Networks and Algorithms for Their Finding (M. Fonoberova).- 14. Some Distributed Approaches to the Service Facility Location Problem in Dynamic and Complex Networks (I. Stavrakakis).- 15. Modeling Epidemic Spreading in Complex Networks: Concurrency and Traffic (S. Meloni, A. Arenas, S. Gomez, J. Borge-Holthoefer, Y. Moreno).- 16. Theory of citing (M.V. Simkin, V.P. Roychowdhury).- 17. TTLed Random Walks for Collaborative Monitoring in Mobile and Social Networks (Y. Altshuler, S. Dolev, Y. Elovici).