Open Access Digital Libraries
IBGE – Brazilian Institute of Geography and Statistics
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
A historic library featuring manuscripts, rare books, and classical documents of Hispanic culture.
Miguel de Cervantes Virtual Library
A global reference in Hispanic literature, offering a digital collection of literary works, linguistic studies, and cultural materials.
Library of Congress — Digital Collections
The largest library in the world, containing photographs, historical documents, audio recordings, classical texts, and cultural records.
SpringerOpen
A repository of peer-reviewed, open access scientific articles across multiple fields, including education, health, psychology, and technology.
ScienceDirect
One of the world’s largest platforms for scientific literature, offering high-level technical and academic publications.
SCIRP – Scientific Research Publishing
A portal hosting open access scientific journals, useful for recent research across various fields of knowledge.
HathiTrust Digital Library
A collection of millions of digitized books from universities worldwide, ideal for historical and bibliographic research.
Digital Public Library of America (DPLA)
A digital library providing access to images, photographs, newspapers, and cultural archives from across the United States.
CLACSO – Latin American Library
An academic repository of Latin American publications in the social sciences, including anthropology, sociology, and political studies.
JURN Academic Search
A search tool designed to locate open access academic articles across multiple disciplines.
BVS — Virtual Health Library (Brazil)
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
A leading database in public health, mental health, epidemiology, and biomedical research.
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
A repository of Brazilian academic theses and dissertations, an excellent source for methodological grounding and literature review.
World Bank – Open Data
Global economic, social, and development indicators, ideal for comparative, cross-country research.
U.S. Library of Congress
Journals and Books – Humanities and Social Sciences (France)
New York Public Library – Digital Collections
Europeana
Open Access Scientific Repository of Portugal (RCAAP)
Brazilian Open Access Portal for Scientific Publications and Data (theses, dissertations, and articles)