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There's yet another way to post writing and photos and share them with other people online. Medium is a new blogging tool for people who feel constrained by Twitter and overwhelmed by Blogger or Tumblr.
Currently only in preview mode, the project is getting attention because of its founders' impressive pedigree. Evan Williams and Biz Stone co-founded Twitter and Blogger, so they know about blogging, both long and short form. Medium is the latest product out of their Obvious Corporation, which incubated Twitter in its early days, and the duo has a grand vision for the blogging tool, elucidated in a long announcement post by Williams.