Green open access involves making work, often a version of a published article, openly available through a repository. A variety of platforms are available, including disciplinary repositories (e.g. ArXiv or PubMed Central) and institutional repositories hosted by a university or organization. The benefit of green open access for researchers is the avoidance of costs that may otherwise accompany the gold open access model. Challenges associated with green open access involve the ability of the author to retain the necessary copyright permissions to share their work, publishers' restrictions regarding the version of the article (pre-print or post-print) that can be shared, and the perpetuation of traditional publishing models. A number of resources are available to identify online repositories:
Many universities, organizations, and departments have implemented open access policies which require or encourage their researchers to permit their research to be openly available, usually in a specified open access repository. ASU passed an Open Access Policy in March of 2017, and the ASU Library Librarians Assembly passed an Open Access Resolution in 2010.
In February 2013, the White House's Office for Science and Technology Policy released a memo mandating all federal funding agencies with budgets of $100 million or more to develop plans "to make the published results of federally funded research freely available to the public within one year of publication and requiring researchers to better account for and manage the digital data resulting from federally funded scientific research." Here is a list of those plans as they become available:
Created by the Australian Open Access Strategy Group, this comparison illustrates the distinctions between traditional and green open access publishing and identifies the advantages and limitations of each (click on image to expand).
Discipline or subject repositories are online archives designed to preserve, organize, and disseminate research either centered on a single discipline (e.g biology or physics) or multi-disciplinary (e.g. life sciences or humanities). Material is deposited by researchers throughout the world to be freely accessible with limited restrictions. For a more complete list of multidisciplinary databases, view the Open Access Resources Library Guide
Institutional repositories are digital collections managed by a university or research organization. Institutional repositories serve a variety of valuable roles, including supporting open access through collecting and sharing an institution's scholarly output. ASU's Digital Repository supports open access and the university's scholars, allowing for the discovery of the creative and scholarly output of ASU. For a more complete list of academic institutional repositories, consult the Open Access Resources library guide.
For authors to archive their work in a repository they must retain the appropriate copyright permissions. Authors publishing in traditional journals often relinquish their rights to control the dissemination of and access to their work. Many publishers already have established policies permitting authors to archive their work as a part of their standard publishing agreement. Authors may consult SHERPA/RoMEO to determine a publisher's standard policy for self-archiving.
For more information regarding author's rights, see Copyright for Authors.