Just heard that the Dublin Review of Books are running a Once Off Flash Fiction Contest. Entries are invited from around the world.
First Prize 1,000 Euros . Deadline June 1st 2010. Entry fee 10 euro - for that you can submit up to three stories of no more than 500 words apiece.
Work must be previously unpublished. Simultaneous submissions are not accepted. Click on the title of this post for more details