Submittable

Organizations of all kinds use Submittable to run polished award programs that make submitting, judging, and awarding fair, fun, and foolproof.
OPEN CALL: SCIENCE FICTION, FANTASY & PULP MARKETS

This is a group for the posting of calls for submissions ONLY. Promotions, links, memes, spam, and any other posts will be deleted. NOTE: Admins will from time to time post informational posts (such as Writer Beware) that are helpful to our members.
OPEN CALL: Speculative Markets - Horror, Science Fiction, and Fantasy

A Facebook group for posting and finding open calls. Although the focus is on speculative markets, all genres are welcome.
Publishing ... and Other Forms of Insanity

NOTE: Please read all submission guidelines. This webiste link is provided for you to help you find avenues for writing.
The Submission Grinder

The Submission Grinder is a donation-supported submission tracker and market database for writers of fiction, poetry, and nonfiction. Use our extensive and powerful search engine to find a home for your work.
Open Submission Calls for Romance Writers

Have you heard of an open submission call from a publisher? Then post here and share with the group! That way, we can keep each other in the loop of special calls from publishers.
Please do research before submitting a piece to any company.
Authors Publish Magazine Call for Submissions

These are calls and contests for fiction, nonfiction, and poetry. Some of the call themes are: folk horror; holiday; the unmaking; thresholds; arms & armor; alchemy; who gets to be American?; communication; long-term relationships; cats; the language of flowers; eerie Christmas; and soilpunk.
OPEN CALL: HORROR MARKETS

A place for Publishers and Writers to post open calls for professional rate paying horror publications (defined as $25 USD or above).. All posts should have viable links, and contain payment information. No thanks necessary for being added to the group.
OPEN CALL: Crime, Thriller, Mystery Markets

A place for Publishers and Writers to post open calls for CRIME THRILLER OR MYSTERY Publications. All posts MUST have viable links. ALL SPAM WILL BE DELETED WITHOUT WARNING! No thanks necessary for being added to the group.
IFW Institute for Writers

This is a wesbiste that is all about learning to write. However, they do hold contests.
Contests are a great way to sharpen your submission skills, stretch your imagination, and get your work out in the world. That’s why the Institute runs adult and kidlit writing contests throughout the year.