Cerridwyn Publishing is a fairly new publisher seeking novellas of 15,000 to 30,000 words to be collected together in anthologies. Payment is shared royalties. Currently there are five calls with various deadlines:
Winter Dreams - Holiday themed. The deadline for this one is August 15 (short notice)
Tied Up With a Bow - Erotica
Be My Valentine - Romance
Beyond The Apocalypse - Urban Fantasy
Hidden in the Steam - Steampunk
You can find all the details here.
UPDATE: September 2014 - The website seems to have disappeared into the ether.