(I originally heard about this at Bookshelves of Doom.)
Strange Chemistry was YA and Exhibit A was crime/mystery. I haven't read anything from either of these imprints, although I have some Strange Chemistry books in my TBR.
Apparently, those titles that were on their publishing schedule and due to be out soon are now in limbo (one example: Eliza Crewe's Crushed, which is Book 2 in a series that sounds interesting enough that I've added it to my TBR). It brings back memories of when Tokyopop went belly up with several series still unfinished and at least a couple that were only a single volume away from being complete. Ouch.