The fourth newsletter of FamiliesAndSocieties includes two interviews; the first with Amparo González-Ferrer, Work Package 8 co-leader, senior research fellow at the Spanish National Research Council (Madrid), and the second with Pearl Dykstra, Work Package 7 co-leader, Professor at the Department of Sociology, Erasmus University Rotterdam. See also the new data portal PERFAR, which offers a broad collection of policies related to population developments throughout Europe, a catalogue with links to socio-economic and demographic data, and an online repository for related research results.