Have you seen Alfie Dog Fiction? There are hundreds of stories to download, in all kinds of genres. Contributing authors receive royalties based on the number of downloads. The process of submitting work is very straightforward, and is all explained on the website.
I am happy to say I have recently had two stories accepted by Alfie Dog. The first is now available, called 'The Mischief Game', and the second is scheduled for publication on February 20th.
With small press markets shrinking, and fiction slots in established magazines becoming ever more competitive, it's great to find new opportunities for publication. Great work, Alfie Dog!