UK e-publisher, Anachron Press, has just opened submissions for Pulp Line. They're looking for novellas of 15,000 to 30,000 words in a variety of genres with payment a 50/50 split of royalties. You can find all the details here http://www.anachronpress.com/open-submissions-for-pulp-line/
A big thank you to Michael Bracken for the link!!