Sign-ups are live:
sign-up form. Sign-ups are live until February 4, 11:59PM UTC.
To sign up, you must request at least three relationships of the "/" or "&" variety, including "Character & None." You must offer at least four relationships, which do not have to be the same as you requested. You may request up to ten. You may offer up to ten, and include additional offers within the same line of those ten, with a maximum of fifty offers.
Please make sure your Do Not Wants are listed in your sign-up. You may edit your sign-up until Feb 4th. If you've got questions, ask.
There will be a post for Dear Yoda letters, and for additional challenges, as well as a surprise coming soon!
EDIT: Reminder that AO3 has a known bug where not all tags may appear in the drop down during sign-ups. When in doubt, copy and paste directly from the
tag set.