DOAB is a searchable database of peer reviewed scientific monographs that have been made accessible by academic publishers in open access. DOAB contains the metadata of 'free to share' e-books and provides direct links to the full text of the publications on the websites of the publishers. The collection covers all disciplines but focuses in particular on humanities, law and social sciences. All books in DOAB have a full open access license, making them ‘free to share’. 

The GDL collects existing high-quality open educational reading resources, and makes them available on web, mobile and for print. The GDL currently offers 6000+ books in 76 languages. 

Service from Google Inc. that searches the full text of books and magazines that Google has scanned. On Google Books, you can read books and magazines, download them for later, cite them and translate them.

The Internet Archive, a non-profit, is building a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, we provide free access to researchers, historians, scholars, the print disabled, and the general public. Our mission is to provide Universal Access to All Knowledge. 

The Library of Congress is the largest library in the world, with millions of books, recordings, photographs, newspapers, maps and manuscripts in its collections. The Library preserves and provides access to a rich, diverse and enduring source of knowledge to inform, inspire and engage you in your intellectual and creative endeavors. 

British publisher Oxford University Press provides access to an expanded library of over 100 free eBooks during school closures.

Create a free account for unlimited access.

Project Gutenberg was the first provider of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and his memory continues to inspire the creation of eBooks and related content today. The database contains millions of copyright-free books and speeches, all available for free download. 

Launched in 2009, the World Digital Library (WDL) was a project of the U.S. Library of Congress, with the support of UNESCO, and contributions from libraries, archives, museums, educational institutions, and international organizations around the world. The WDL sought to preserve and share some of the world’s most important cultural objects, increasing access to cultural treasures and significant historical documents to enable discovery, scholarship, and use. 

PHL CHED Connect is an online learning hub that contains higher education course materials in various formats such as text, audio, video and other digital resources that are useful for teaching, learning and research purposes. 

BiblioBoard Open Access boasts a growing assortment of rich historical and locally curated multimedia content as well as high-quality Open Access content and Open Educational Resources. Featuring interesting digital exhibits and collections from a wide range of partners, BiblioBoard OA ensures global access to this content all with unlimited uses and no restrictions. 

CORE harvests research papers from such as institutional and subject repositories, and open access and hybrid journals.

CORE currently contains 207,255,818 open access articles collected from 10,682 data providers around the world.

The DOAJ (Directory of Open Access Journals) was launched in 2003 with 300 open access journals. Today, this independent database contains over 16 500 peer-reviewed open access journals covering all areas of science, technology, medicine, social sciences, arts and humanities. Open access journals from all countries and in all languages are welcome to apply for inclusion. 

The Science and Technology Academic and Research-Based Openly-Operated Kiosk Stations (STARBOOKS) will be access portals in key areas in the Philippines where residents can have access to the scientific information physically available at DOST (SciNeT), Philippine eLib project sources, freely-available online resources, and subscribed databases (if any) 

We are supporting the aspirations of our communities by opening up the discovery process to the whole world through openness, accessibility and transparency of research and data. (Source from the website) 

Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites. Google Scholar helps you find relevant work across the world of scholarly research. 

HathiTrust Digital Library is a digital preservation repository and highly functional access platform. HathiTrust provides long-term preservation and access services  to digitized content from a variety of sources, including Google, the Internet Archive, Microsoft, and in-house member institution initiatives. Items in the public domain are in full-view for everyone and items held in copyright are searchable. 

OAPEN promotes and supports the transition to open access for academic books by providing open infrastructure services to stakeholders in scholarly communication. We work with publishers to build a quality-controlled collection of open access books and provide services for publishers, libraries, and research funders in the areas of hosting, deposit, quality assurance, dissemination, and digital preservation. 

Textbooks in the Open Textbook Library are considered open because they are free to use and distribute, and are licensed to be freely adapted or changed with proper attribution. 

The Philippine E-Journals (PEJ) is an online collection of academic publications of different higher education institutions and professional organizations. Its sophisticated database allows users to easily locate abstracts, full journal articles, and links to related research materials. (Source from the website) 

SpringerOpen journals and books are made freely and permanently available online immediately upon publication. They are subject to high-level peer review, author and production services ensuring quality and reliability of the work. (Source from the website) 

We are supporting the aspirations of our communities by opening up the discovery process to the whole world through openness, accessibility and transparency of research and data. (Source from the website)