The lovely joyfulfeather has set up a Dresden Files Ficathon. I'm not sure how many people would see this entry that wouldn't have seen an announcement elsewhere, but I figured it was worth the effort.
Sign-Ups are due by March 17th. You can specify which verse you'd like to write for (book or TV or both) and what you will and will not write (so no worries about ending up with a smut or slash prompt if that's not your cup of tea).
The community is dresdenficathon and the rules are here. Come join us, it will be fun!