We only list professional markets (or otherwise interesting markets) because we believe you should always aim high first. Please let us know if you sell something! We can help you promote it.
We collate this list from various sources. You can visit Duotrope.com (paid), Ralan.com (free), The Submission Grinder, and Aswiebe.com (free) for more complete and up-to-the-moment listings. Also, check out Douglas Smith’s Foreign Language Markets List (free). And you can scroll through the Horror Markets Facebook group for open-call announcements.