The collaborative fiction website One Million Monkeys Typing satisfies every picky reader’s urge to stop in the middle a story, grab a pen, and have a go at the damn thing yourself. Each story starts with a central trunk, to which writers can then "graft" story-parts. (There are a lot of tree metaphors on the site.) The resulting collaborative fiction is an innovative mix of crowd-sourcing and choose your own adventure. Participating merges the great thing about writers' workshops—being able to critique other people’s writing—with the ability to cut off boring writers and make the stories go wherever you want. It’s genuinely fun, too.