information behaviour: comparing fan-tagging on Tumblr, Archive of Our Own and Etsy" (PDF). Journal of Documentation. 77 (2): 320–358. doi:10.1108/JD-05-2020-0089...
Tumblr (pronounced "tumbler") is a microblogging and social networking website founded by David Karp in 2007 and currently owned by American company Automattic. The service allows users to post multimedia and other content to a short-form blog.