Wikipedia is free, providing access to information on millions of topics to anyone with Internet capabilities. It is frequently updated.
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Wikipedia is great for background reading and exploring topics, for example, by discovering
Wikipedia Edit-a-thons are events where people come together, virtually or in person, to edit and create Wikipedia entries.
They often tackle particular themes or topics, but most are focused on:
GLAM is an acronym for "galleries, libraries, archives, and museums", and refers to cultural institutions with a mission to provide access to knowledge.
Art+Feminism builds a community of activists that is committed to closing information gaps related to gender, feminism, and the arts, beginning with Wikipedia.
Art and Feminism (stylized as Art+Feminism) is an annual worldwide edit-a-thon to add content to Wikipedia about female artists. The project, founded by Siân Evans, Jacqueline Mabey, Michael Mandiberg, and Laurel Ptak, has been described as "a massive multinational effort to correct a persistent bias in Wikipedia, which is disproportionately written by and about men".