The following article presents part of the final results of an investigation carried out in the city of Granada, Spain, referring to the knowledge of the dynamics of work in the field of nonformal education with groups at risk of social exclusion and the promotion of communities and groups. More specifically, children at risk of exclusion participate in educational and training activities of local nongovernmental organizations (NGOs), with ages between 6 and 17 years. Its objectives have been to “recognize and describe the main methodological strategies in the teaching of social values and community development,” and evaluate the effectiveness of this type of educational organizations. We have used a mixed research design such as questionnaires, interviews, and indirect observation of professionals, volunteers, and users of small and very small NGOs and nonprofit organizations. Key findings include the use of alternative methodologies focused on comprehensive development and community partners; and greater efficiency for its users.