As a founder of both Blogger and Twitter, Evan Williams helped change the way people write online. Now, with his latest start-up, Medium, he is trying to figure out how we will write in the future.
Mr. Williams is also still trying to decide how to describe his venture. Medium is for short posts and long ones, by amateur writers and professional ones. It emphasizes a clean design and relies on a network of writers and readers to edit and discover new posts.