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.
PhilPapers is a comprehensive index of the research literature in philosophy including an Open Access archive that is integrated with its citation index.
The Metropolitan Museum’s initiative provides access to images of art in its collection that the Museum believes to be in the public domain and free of other known restrictions; these images are now available for scholarly use in any media.
