Brought to us by the MIT Media Lab and the MIT Center for Civic Media, FOLD is an open-source "reading, authoring, and publishing platform allowing storytellers to structure and contextualize stories." Anyone with a Twitter or email account can join the platform for free, then easily build stories using narrative cards and context cards. narrative cards are the blocks of text that tell the story; context cards are the videos, maps, photos, gifs, tweets, interactive visualizations (or just about any other media format) that accompany select words and phrases in each narrative card. The effect is fresh and compelling. For instance, a recent story explicated the ins and outs and history of Bitcoin, using a combination of original narrative and various YouTube content to tell the tale. While reading the content already on the site is interesting, it becomes even more compelling when you start using the innovative, user-friendly service to join the conversation yourself.