As soon as Twitter opened its virtual doors a whole host of Twitter based zines started up. Tweet the Meat is a horror fiction market publishing Twitter only stories. It is accepting submissions from today (only accepts submissions at the weekend) and will launch officially in May. It publishes horror/surreal tales of 140 characters or less. The payment is $1 per story, which isn't bad.
To read submission guidelines, visit their blog here.
To read some sample tweets or follow them, visit their Twitter account here.