Scholarpedia is a peer-reviewed open-access encyclopedia written and maintained by scholarly experts from around the world. Scholarpedia is inspired by Wikipedia and aims to complement it by providing in-depth scholarly treatments of academic topics.
DOAB is a community-driven discovery service that indexes and provides access to scholarly, peer-reviewed open access books and helps users to find trusted open access book publishers. All DOAB services are free of charge and all data is freely available.

DOAJ is a unique and extensive index of diverse open access journals from around the world, driven by a growing community, committed to ensuring quality content is freely available online for everyone.

PeerLibrary is an open source project developing a collaborative online community where scholars and researchers can discover, read, and discuss scholarly literature all within one site. This project focuses on expediting access to publications, enabling public recordings of...
Search engine for tens of millions of preserved research papers. This fulltext search index includes over 25 million research articles and other scholarly documents preserved in the Internet Archive.

Paperity is the first multidisciplinary aggregator of Open Access journals and papers. Stay on top of recent discoveries and never hit a paywall. Have an Open Access to Science anytime and any place.
Cost / License
- Free
- Proprietary
Platforms
- Online


+7
Knowledge Unlatched has established an open access model for scholarly ebooks that puts libraries in the center of change. Through global collaboration, libraries fund the production of ebooks that are openly available upon publication.
Cost / License
- Free
- Proprietary
Platforms
- Online

















