The aim of the DOAJ is to increase the visibility and ease of use of open access scientific and scholarly journals, thereby promoting their increased usage and impact. The DOAJ aims to be comprehensive and cover all open access scientific and scholarly journals that use a quality control system to guarantee the content. In short, the DOAJ aims to be THE one stop shop for users of open access journals.
DOAB aims to increase discoverability of Open Access books. It is a discovery service for peer reviewed books published under an Open Access license. DOAB provides a searchable index to the information about these books, with links to the full texts of the publications at the publisher's website or repository.
A nonprofit publisher,membership, and advocacy organization with a mission to accelerate progress in science and medicine by leading a transformation in research communication. Every article published in PLOS is open access - freely available online for anyone to use.