We had forty-two fandoms represented as well as a few prompts that are not fandom/pairing specific.
I'm not going to list all twenty fandoms, but some of the most popular were:
NCIS (a variety of pairings)
Starsky & Hutch
The Man From U.N.C.L.E
But even if your fandom hasn't appeared and you'd like to write a story/produce artwork, check out the 'fandom/pairing-free' section - there are several prompts here.
And remember, this is open to both writers and artists. Posting begins tomorrow and continues for the entire month of May.
If you'd like to pimp this on your LJ or any comm you think may be interested, please do so.