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The Digital Public Library of America brings together the riches of America’s libraries, archives, and museums, and makes them freely available to the world. It strives to contain the full breadth of human expression from the written word to works of art and culture to records of America’s heritage, to the efforts and data of science (quote from the website).
DOAJ increases visibility and use of open access scientific and scholarly journals, thereby promoting their usage and impact. DOAJ covers all open access scientific and scholarly journals that use a quality control system to guarantee the content.
Find millions of great books many only for preview but many you read for free.
Google Scholar indexes scholarly literature. Be sure to click on settings to set your preferences, and identify your university for seamless access to articles available through your institution's library.
HathiTrust is a partnership of academic & research institutions, offering a collection of millions of titles digitized from libraries around the world (from the website).
JustFreeBooks searches the content of more than 700 web sites. Find public domain texts, open books, free audio books, ad-supported books and more.
The OAPEN Library contains freely accessible academic books, mainly in the area of Humanities and Social Sciences. OAPEN works with publishers to build a quality controlled collection of Open Access books, and provides services for publishers, libraries and research funders in the areas of dissemination, quality assurance, and digital preservation.
Search the contents of the repositories listed in OpenDOAR for freely available academic research information. This quality assured approach leads more directly to useful and relevant information. Full texts are available for most results (quote from the website).
Project Gutenberg offers over 42,000 free ebooks: choose among free epub books, free kindle books, download them or read them online.
A selection of over 5,000 of our public domain, classic and rare books for free! You can search them by title or keyword, or browse them alphabetically.
The PDB archive contains information about experimentally-determined structures of proteins, nucleic acids, and complex assemblies. As a member of the wwPDB, the RCSB PDB curates and annotates PDB data according to
The Victorian Web includes over 61,000 documents and includes Primary and secondary texts in British Victorian economics, literature, philosophy, political and social history, science, technology, and visual arts.