Okay, it isn’t a magazine, but Submittable still deserves mention in a post about litmag innovation. The startup has been around since 2010, but in 2012 kicked things up a notch with half a million dollars in funding from various VC firms and a wise name change (it used to be called Submishmash). The service, a godsend both for publishers and writers, allows for beautifully simple submitting of work (and fast payment of a small fee if the outlet is charging one), and keeps track of all your active submissions in a nicely organized “dashboard” panel. (Occasionally you can find out that a story has been rejected or accepted before even hearing from the magazine, by logging into your Submittable pane.) Everyone is using Submittable, but to name just a few heavy-hitters: The Believer, Tin House, Granta, Gigantic, The Coffin Factory, and Paper Darts. And the Twitter feed (@submittable) is a must-follow for its constant updates about litmag contests and calls for submissions at interesting new outlets you hadn’t heard of before.