public_call is a secret santa fic exchange for Doctor Who and its various related fandoms, run through LJ and AO3.

Sign-ups: 1st - 15th October (request 3 to 15 relationships, offer 3 to 20. One each must be New Who and/or Torchwood.)
Deadline: 22nd November
Posting period: starting 1st December

Sign-ups are open now.

More info: Detailed Rules and FAQ