IBGE – Brazilian Institute of Geography and Statistics https://www.ibge.gov.br/ Brazil’s official source of socioeconomic and demographic data. Useful for research involving statistics, population studies, economics, and social indicators.
National Library of Spain – BNE Digital https://www.bne.es/es/catalogos/bne-digital A historic library featuring manuscripts, rare books, and classical documents of Hispanic culture.
Miguel de Cervantes Virtual Library https://www.cervantesvirtual.com/ A global reference in Hispanic literature, offering a digital collection of literary works, linguistic studies, and cultural materials.
Library of Congress — Digital Collections https://www.loc.gov/collections The largest library in the world, containing photographs, historical documents, audio recordings, classical texts, and cultural records.
SpringerOpen https://www.springeropen.com/ A repository of peer-reviewed, open access scientific articles across multiple fields, including education, health, psychology, and technology.
ScienceDirect https://www.sciencedirect.com/ One of the world’s largest platforms for scientific literature, offering high-level technical and academic publications.
SCIRP – Scientific Research Publishing https://www.scirp.org/ A portal hosting open access scientific journals, useful for recent research across various fields of knowledge.
HathiTrust Digital Library https://www.hathitrust.org/ A collection of millions of digitized books from universities worldwide, ideal for historical and bibliographic research.
Digital Public Library of America (DPLA) https://dp.la/ A digital library providing access to images, photographs, newspapers, and cultural archives from across the United States.
CLACSO – Latin American Library https://biblioteca-repositorio.clacso.edu.ar/ An academic repository of Latin American publications in the social sciences, including anthropology, sociology, and political studies.
JURN Academic Search https://www.jurn.link/#gsc.tab=0 A search tool designed to locate open access academic articles across multiple disciplines.
BVS — Virtual Health Library (Brazil) https://brasil.bvs.br/ Brazil’s central repository for scientific publications in health, widely used in medicine, nursing, and clinical psychology.
LILACS — Latin American and Caribbean Health Sciences Literature https://lilacs.bvsalud.org/ A leading database in public health, mental health, epidemiology, and biomedical research.
Science.gov https://www.science.gov/ The U.S. Government’s scientific search engine, providing access to official publications and technical government reports.
BDTD – Digital Library of Theses and Dissertations https://bdtd.ibict.br/vufind/ A repository of Brazilian academic theses and dissertations, an excellent source for methodological grounding and literature review.
World Bank – Open Data https://data.worldbank.org/ Global economic, social, and development indicators, ideal for comparative, cross-country research.