This document lists several publications in 2019 by Isidro Maya-Jariego and collaborators from the Personal Networks and Communities Laboratory at the University of Seville. The publications cover topics such as the role of personal networks, social media, and community cohesion in peace-building efforts in Colombia; community interventions; visualizing strategies for collecting personal network data; motivations and intentions of MOOC users; relationships between personal networks, personality traits, and sense of community; and links between attachment styles, personal networks, and job satisfaction among managers in Quebec, Canada.