Medium is the product of the Twitter co-founders' San Francisco-based Obvious Corporation, and was launched in a preview on Tuesday. The site operates similarly to Slashdot, Reddit and Pinterest, in that users can vote up content that they find compelling, "giving feedback to the creator and increasing the likelihood others will see it," as an posted to the site by Williams explained.

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The site organizes similar content in "collections." These are created by users with a theme in mind, and allow fellow users to contribute their own content that fits in with it. Some examples include and , both of which were initially created by Williams but contain content from a handful of other users.

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Those looking to simply browse a collection can decide whether they want the page to sort content by the latest submissions or those that are deemed most "interesting," meaning they received the most votes by other users.