We had fifty-one fandoms represented as well as a few cross-overs and quite a few prompts that are not fandom/pairing specific.
I'm not going to list all fifty fandoms (for which I'm sure you are glad *g*) but here are a few:
NCIS (a variety of pairings)
Sherlock Holmes (Bookverse)
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 quite a lot of prompts there.
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.