Medium is an American online publishing platform for written content such as articles and blogs, developed by Evan Williams and launched in August 2012. It is owned by A Medium Corporation. The platform is an example of social journalism, having a hybrid collection of amateur and professional people and publications, or exclusive blogs or publishers on Medium, and is regularly regarded as a blog host.
Williams, who previously co-founded Blogger and Twitter, initially developed Medium as a means to publish writings and documents longer than Twitter's 140-character (now 280-character) maximum.
In March 2021, Medium announced a change in its publishing strategy and business model, reducing its own publications and increasing support of independent writers.