At Jason Black's request, I'll share the Twitter recommendations I've received so far (and be sure to tweet me your own, or leave them in the comments here). I'll throw in a few of my own as well!
Dan Krokos recommends Josh Bazell's Beat the Reaper;
Jason Black recommends Natalie Standiford's How to Say Goodbye in Robot, Rebecca Stead's When You Reach Me, and D.M. Cornish's Monster Blood Tattoo series (books one and two, respectively);
Terry Odell mentions (jokingly, I'm sure, but I'm happy to spread the word) her own list of romantic suspense/mystery titles (I'm sure they're fantastic, but have yet to read);
Alexis Lampley recommends The Harvard Lampoon's Nightlight (a parody of Twilight);
and Joseph L. Selby is amped for Lois McMaster Bujold's Cryoburn to come out in November.
As for me, I'm recommending Hans Fallada's Every Man Dies Alone, Rae Armantrout's Versed (the paperback is due out in August), and Best American Short Stories 2009 (edited by Alice Sebold and Heidi Pitlor).
You can also check out this recent interview I did with The Best Damn Creative Writing Blog... Period for some titles on my to-read list.