Medium is an online publishing platform developed by Twitter co-founder Evan Williams on August 2012, and owned by A Medium Corporation. The platform is an example of evolved 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 developed Medium as a way to publish writings and documents longer than Twitter's 140-character maximum. It eventually grew into a separate platform independent of Twitter's brand. Medium also has its own publications, including the online music magazine Cuepoint, edited by Jonathan Shecter, NewCo Shift led by entrepreneur, author and journalist John Battelle, and the technology publication Backchannel, edited by Steven Levy.