River Styx 2012 Micro-Fiction competition

Literary magazine River Styx has announced details of its now annual micro-fiction competition.  Original and previously unpublished stories of up to 500 words are called for (up to three may be entered by each contestant).  There's a US$ 1500 first prize.  Entries should be postmarked no later than 31st December 2011.  You can find more details here.