What they want:

Sirens Call Publications is currently accepting submissions for our bi-monthly e-zine, focusing on edgy and dark speculative fiction including Horror, Fantasy, Science Fiction, and Suspense genres.

Length: short stories (1000 – 2500 words), flash fiction (300 – 500 words).
Payment: no payment, free PDF copy
Submission Guidelines: http://www.sirenscallpublications.com/open_subs.htm