Open access (OA) research is information that has been made publicly available without cost to the consumer. Many funding agencies now have open access mandates that require researchers to deposit their peer-reviewed work in a freely accessible repository within a specified time after publication.
Below are some informative articles about the impact of open access vs. non-open access articles.
The bookmarklets below are free, useful tools for helping you locate open access publications and data sets from anywhere on the web.
You may come across some of the following terms when investigating open access:
Green OA: Authors publish their work and then self-archive it, usually the accepted manuscript version and often after an embargo period.
Gold OA: Authors publish their work and then the publisher provides immediate OA on their site, often charging the authors a fee ("Article Processing Charge" or APC).
-Some definitions further define Gold journals as being fully OA, and use the term "Hybrid" to describe journals that are traditionally toll-access but in which authors can publish OA for a fee.
Bronze OA: Free to read on the website of a toll-access journal, but without an OA license granting other rights for re-use or modification.
Diamond OA: Free to read and free to publish (no APCs). Authors publish their work and then the publisher provides immediate OA on their site.
Gratis access: Open access work that is free for all to read, with no permissions for re-use or modification.
Libre access: Open access work that is free for all to read and includes additional permissions granting at least some rights for re-use or modification.