Fantastic Stories of the Imagination is a new online zine that publishes Science Fiction and Fantasy stories of any length. Pay here is 15cents a word with a max of $500. They also accept reprints and pay a flat fee of $25 for those. There is an issue up now so you can read the stories and get a feel for what the editor is looking for. You can find all the details here.
Hat tip to Coffintree Hill!