Introduction (Mario Paolucci and Luciana Taddei).- Part 1. Open Science and Research infrastructures for Social Sciences.- 1. Open Science and the Role of Social Sciences Research Infrastructures and Data (Francesca di Donato).- 2. Methodological Framework: Longitudinal and Panel Data in Social Science Research (Ilaria Primerano, Nicolò Marchesini, Francesco Santelli, Luciana Taddei, Loredana Cerbara).- 3. Open Cloud Platform (Mario Ciampi, Mario Sicuranza, Emanuele Damiano, Pier Giuseppe Meo, Giovanni Massafra).- 4. Ethical Implications in Building Longitudinal Data Infrastructures (Loredana Cerbara, Dario Germani, Michele Santurro).- Part 2. European Infrastructures and Surveys.- 5. The Rise of Social Science Infrastructures in Europe and Italy (Luciana Taddei and Mario Paolucci).- 6. Share-Eric: A European Infrastructure for Research on Ageing and Retirement (Agar Brugiavini, Stefano Castaldo, Guglielmo Weber, Nancy Zambon).- 7. The Consortium of European Social Science Data Archives (CESSDA) and the Data Archive for Social Sciences in Italy (DASSI) (Filippo Accordino, Fabrizio Pecoraro, Daniela Luzi, Carlo Pisano, Domingo Scisci).- 8. Retirement, Health, and Digital Gaps: Studying European Ageing with SHARE (Chiara Dal Bianco, Guglielmo Weber, Nancy Zambon).- 9. Guide: Innovations and Challenges to Survey Child Well-being in Italy (Emilio Maria Colella, Giulio Ecchia, Dario Germani, Ilaria Primerano, Michele Santurro, Francesca Tosi, Massimo Ventrucci and Matthew John Wakefield).- 10. GGS - Generations and Gender Survey (Letizia Mencarini, Nicol`o Cavalli, Elena Marseglia, Matilde Perotti, Ilaria Primenaro, Michele Santurro, Nicolò Marchesini).- 11. The Italian way to an Online Probability Panel (Luciana Taddei, Ferruccio Biolcati Rinaldi, Frank Heins, Nicolò Marchesini, Angela Paparusso, Claudia Pennacchiotti, Francesco Piacentini, Ilaria Primerano, Cristiano Vezzoni, Michele Santurro).- 12. Synthetic Populations in Research Infrastructures (Rocco Paolillo, Nicholas Roxburgh, Alice Sbrana, Gary Polhill, Evelina Carmen Sabatella, Mario Paolucci).- Open conclusions (Luciana Taddei and Mario Paolucci).