The 2013 SGA Santa fic exchange is now open. The exchange is for all types of fic related to Stargate Atlantis - all types and all pairings - and the minimum word count for submissions is 1,000 words. While the fest is run on livejournal, you don't have to have a livejournal account to take part.
Sign up information can be found
here and the sign up post for people who don't have an LJ/can't post to LJ can be found
here.
Sign ups close on 8th October and stories are due by December 10th.