WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource.
During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease.
[2] Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue.
[6] In order to spur participation and concentrate effectiveness, WikiProjects on Wikipedia may engage in activities like having a "collaboration of the week",[7] or designating one article to be improved to the point of achieving "featured" status.
Diverse experience and contributions to the development of policies and WikiProjects were stronger predictors of RfA success.
[11][12] [...] Participation in Wikipedia policy and WikiProjects was not predictive of adminship prior to 2006, suggesting the community as a whole is beginning to prioritize policymaking and organization experience over simple article-level coordination.
Researcher Giacomo Poderi found that articles tend to reach featured status via the intensive work of a few editors.
[23] A 2016 review written by Wikipedians[a] stated that the number of high quality articles had improved to about 80.
[25] James Heilman told CBS News, "I do not recommend people trust Wikipedia blindly.