Less Than Three Press has posted three new calls for what they calling "Collection Calls". Basically they're looking for novellas to publish as singles but with a theme. Payment is 45% of the cover price through their store and 40% of the gross through other distributors. And the themes:
Intertwined - 10,000 to 50,000 words with a January 31 deadline.
The Devil's Land - Westerns of 10,000 to 50,000 words with a March 31 deadline.
Solitary Travelers - 15,000 to 40,000 words with a April 30 deadline.
You can find all the details here.