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Open Access

Green Open Access Day

March 17, 2026


Green OA Day is a grassroots library initiative established by Erica Finch to promote and provide education about green open access (OA). Also referred to as self-archiving, green OA is when authors make a version of their published, paywalled works freely accessible on some kind of website or repository so that anyone with internet access can read and learn from it.

Green OA is a cost-effective and equitable pathway to making research open access, especially for authors who can’t afford to pay the article processing fees charged by gold and hybrid OA journals. It’s also a pathway towards meeting funder requirements for open access!