Link: https://www.arquivoestado.sp.gov.br/web/
Link: http://www2.fe.usp.br:8080/livres/
Link: https://library.ufv.ca/
Link: https://www.bbm.usp.br/pt-br/
Link: https://www.bib-bvb.de/web/guest/home
Link: https://www.deutsche-digitale-bibliothek.de/
Link: https://sol.sbc.org.br/index.php/indice/index
Link: http://bdtd.ibict.br/vufind/
Link: https://www.instituto-camoes.pt/activity/servicos-online/biblioteca-digital
Link: https://obrasraras.usp.br/
Link: https://obrasraras.museunacional.ufrj.br/
Link: http://www.iberoamericadigital.net/BDPI/Inicio.do
Link: https://bds.unb.br/
Link: https://sistema.bibliotecas-bdigital.fgv.br/
Link: https://www.loc.gov/collections/world-digital-library/about-this-collection/
Link: https://bibliotecas.ufu.br/portal-da-pesquisa/livros-eletronicos/biblioteca-digital-paulo-freire
Link: https://www.dnb.de/DE/Home/home_node.html
Link: https://gallica.bnf.fr/accueil/fr/content/accueil-fr?mode=desktop
Link: https://bndigital.bnportugal.gov.pt/
Link: https://bndigital.bn.gov.br/
Link: https://bis.sebrae.com.br/
Link: http://machado.mec.gov.br/
Link: https://site.uniaraxa.edu.br/bibliotecavirtual/biblioteca-virtual-de-inovacao-tecnologica/
Link: https://brasil.bvs.br/
Link: https://www.europeana.eu/pt
Link: https://books.scielo.org/
Link: https://aplauso.imprensaoficial.com.br/
Link: https://www.doabooks.org/
Link: http://www.dominiopublico.gov.br/pesquisa/PesquisaObraForm.jsp
Link: https://sead.ufba.br/e-books
Link: https://www2.unesp.br/portal#!/cgb/e-books/e-books-unesp/
Link: https://econtents.bc.unicamp.br/omp/index.php/ebooks
Link: https://www.adelaide.edu.au/library/news/list/2020/01/07/ebooksadelaide-has-now-officially-closed
Link: http://ebooksbrasil.org/index2.html
Link: https://www.infoteca.cnptia.embrapa.br/
Link: https://www.alice.cnptia.embrapa.br/
Link: https://www.sabiia.cnptia.embrapa.br/
Link: https://books.google.com.br/
Link: https://www.latindex.org/latindex/inicio
Link: http://www.literaturadigital.com.br/
Link: https://www.loc.gov/
Link: http://livroaberto.ibict.br/handle/1/110/browse?type=title&submit_browse=T%C3%ADtulo
Link: https://ndltd.org/
Link: https://openlibrary.org/
Link: https://www.livrosabertos.sibi.usp.br/portaldelivrosUSP
Link: https://www.gutenberg.org/ebooks/
Link: https://projectoadamastor.org/
Link: http://sbicafe.ufv.br/
Link: https://www.freelibrary.org/
Link: https://www.universia.net/br/actualidad
Link: https://www.virtualbooks.com.br/editora/
Link: https://pt.wikibooks.org/wiki/Wikilivros:P%C3%A1gina_principal