There is also a growing field of services for publishing OA books. Some research funding agencies, such as the FWF in Austria, require contractually that books too should be published OA. To me, the business model for OA book publishing is less clear than that for journals, and I see many difficulties. Nevertheless, the field is growing.
Some resources:
- Directory of Open Access Books
"The primary aim of DOAB is to increase discoverability of Open Access books. Academic publishers are invited to provide metadata of their Open Access books to DOAB. Metadata will be harvestable in order to maximize dissemination, visibility and impact." - Knowledge Unlatched
"Knowledge Unlatched is a not-for-profit organisation committed to helping global communities share the costs of Open Access publishing so that good books continue to be published and more readers are able to engage with them." - Open Humanities Press
"The basic idea is simple: making peer-reviewed literature permanently available, free of charge and freely redistributable by taking advantage of the low cost and wide access of internet distribution." ... "After looking at the various efforts underway, we concluded that an editorially-driven international press, focused on building respect through its brand, is what is required to tackle the digital 'credibility' problem. With OHP, we aim to emulate the strengths and flexibility of commercial presses, while avoiding the institutional limitations of the university-based e-presses." - Open Edition
"OpenEdition is the umbrella portal for OpenEdition Books, Revues.org, Hypotheses and Calenda, four platforms dedicated to electronic resources in the humanities and social sciences." - Open Edition Books
"OpenEdition Books est une plateforme de livres en sciences humaines et sociales. Plus de la moitié d'entre eux est en libre accès. Des services complémentaires sont proposés via les bibliothèques et institutions abonnées." - Open Access Publishing European Network
"Online library and publication platform. The OAPEN Library contains freely accessible academic books, mainly in the area of Humanities and Social Sciences. OAPEN works with publishers to build a quality controlled collection of Open Access books, and provides services for publishers, libraries and research funders in the areas of dissemination, quality assurance and digital preservation."