Databases

The Atla Digital Library brings together digital collections of scholarly, historical, and cultural significance relevant to the study, teaching, and learning of religion and theology.
In this selection we present some of our finest Christian manuscripts and early printed books, spanning over 1000 years of worship and debate and reflecting both Church ceremonial and private devotion.
Eighteenth Century Collections Online includes significant English-language and foreign-language titles printed in the United Kingdom during the 18th century, along with thousands of important works from the Americas. The database contains more than 32 million pages of text and more than 205,000 individual volumes in all. In addition, ECCO natively supports OCR-based full-text searching of this corpus.
Evans-TCP, a partnership among the TCP,  the Readex division of NewsBank, and the American Antiquarian Society (AAS), created 5,000 accurately keyed and fully searchable SGML/XML text editions from among the 40,000 titles available in the online Evans Early American Imprints collection (series I).
Search the world's most comprehensive index of full-text books
We are entering a new era of scholarship. An era that requires more collaboration. More transparency. More curiosity. That’s why HathiTrust exists — to lead this era by empowering a diverse collective of research and teaching libraries from around the globe. Our digital library preserves the published record for durable, long-term, and lawful access, stewarded in partnership with the academic institutions supporting our work. 
Internet Archive is a non-profit library of millions of free books, movies, software, music, websites, and more.
The mission of Open Access Digital Theological Library (OADTL) is to curate high-quality content in religious studies and related disciplines from publisher websites, institutional repositories, scholarly societies, archives, and stable public domain collections.
The Post-Reformation Digital Library (PRDL) is a select database that organizes the vast array of publicly available digital sources on the development of theology and philosophy during the early modern era (late 15th-18th c.)
The Presbyterian Historical Society leverages its collections and archival work to galvanize the transformative power of history in the Presbyterian Church (U.S.A.) and wider community. 
The Puritan Studies Database is a research portal featuring secondary source material on Puritan and Reformed theologians in England and New England, c.1580-1750.