In the online communities of projects such as Wikipedia, OpenStreetMap, and LocalWiki an edit-a-thon (sometimes written editathon) is an organized event where editors edit and improve a specific topic or type of content, typically including basic editing training for new editors. They often involve meetups, but can be distributed as well. The word is a portmanteau of "edit" and "marathon".
Wikipedia edit-a-thons have taken place at Wikimedia chapter headquarters, accredited educational institutions including Sonoma State University, Arizona State University, The University of Victoria in Canada; as well as cultural institutions such as museums or archives. The events have included topics such as cultural heritage sites, museum collections, women's history, art, feminism, narrowing Wikipedia's gender gap, social justice issues, and other topics. Women and African Americans and the LGBT community are using edit-a-thons as a way of bridging the gap in Wikipedia's sexual and racial makeup. Some have been organised by Wikipedians in residence. The longest editathon took place at the Museo Soumaya in Mexico City from June 9 to 12, 2016, where Wikimedia Mexico volunteers and museum's staff edited during 72 continuous hours. This editathon was also recognized by Guinness World Records as the longest.
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- Content, Sara Boboltz Associate Editor of Viral; Post, The Huffington (2015-04-15). "Editors Are Trying To Fix Wikipedia's Gender And Racial Bias Problem". The Huffington Post. Retrieved 2016-07-30.
- "Social Justice Wikipedia Edit-a-thon workshop - University of Victoria". www.uvic.ca. Retrieved 2016-07-30.
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- Koh, Adeline (30 May 2013). "How to Organize Your Own Wikipedia Edit-a-Thon". The Chronicle of Higher Education. Retrieved 5 February 2014.
- Reynosa, Peter. "Why Don't More Latinos Contribute to Wikipedia?". El Tecolote. Retrieved December 4, 2015.
- "México ganó un nuevo récord Guiness y seguro te va a ser útil". Dinero en Imagen.com (in Spanish). Retrieved 2016-06-13.
- Cruz y Corro, Andrés; Fernanda López, María (22 July 2016). "Wikipedia edit-a-thon, 72 hours long, is recognized with a Guinness World Record". Wikimedia Blog. Retrieved 2016-07-30.
- Villeda, Ian (12 April 2013). "OpenStreetMap #Editathon at MapBox". Retrieved 7 April 2014.
- Foster, Mike (18 October 2013). "Fall 2013 OpenStreetMap Editathon". Retrieved 7 April 2014.
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