The two things I think Tumblr really changed are, I think before Tumblr the primary language of fandom was text-based, and it was very much fic and filk—very text-oriented. I think Tumblr changed it so that the culture of memes

GIFs in general comprise single looped images, but fans often create more complex GIF sets, which are “sets of images, sometimes animated, sometimes not, arranged in a grid of sorts to communicate as a whole” that have “evolved primarily on

Yet it is precisely users’ inability to establish effective boundaries on Tumblr that has led to the ongoing and still hotly contested diversification of fandom participation and expression. Tumblr-enabled fandom cross-fertilization—what Matt Hills (2015) calls transfandom—has contributed to the growth

Web 2.0 phenomena have been called the “read/write” Web (Berners-Lee, 2005), where users’ contributing of comments and content can provide equivalent, and sometimes greater, value to a website than content merely posted in static pages by the site’s owner. Warren,