Open Access

Provides information on millions of books. For books under copyright protections (after 1929), views are provided. Full text for books is provided if in the public domain (before 1929). There may be other books in the public domain if designated by creator or copyright holder.

Over 17 Million items are provided by Hathitrust and full text access to around 5 million items. Used by academic and research libraries as a means of digitizing their collections.

"The Internet Archive offers over 20,000,000 freely downloadable books and texts. There is also a collection of 2.3 million modern eBooks that may be borrowed by anyone with a free archive.org account." quoted from the site.

The Directory of Open Access Books works with publisher to make searching for current titles easier to find.

Project Gutenberg focuses on classic works and authors which are in the public domain.

The scope of Christian Classics is classic Christian works. Works by writers like Augustine, Wesley, or Spurgeon can be found here.

"The WHDL is an interdenominational project created by the Global Church of the Nazarene," as stated on the website.

ATLA Digital Library holds over 40,000 books plus other types of materials as stated on it's website, "Find archival, historical, and special collections in religion and theology from libraries, religious institutions, and archives."

The IAS covers over 35 million articles.