Dana Spiotta's Eat the Document is the only nominated title I've read. Spiotta is the only woman nominated in the fiction and nonfiction categories.
Fiction
Mark Z. Danielewski, Only Revolutions (Pantheon)Nonfiction
Ken Kalfus, A Disorder Peculiar to the Country (Ecco/HarperCollins)
Richard Powers, The Echo Maker (Farrar, Straus & Giroux)
Dana Spiotta, Eat the Document (Scribner/Simon & Schuster)
Jess Walter, The Zero (Judith Regan Books/HarperCollins)
Taylor Branch, At Canaan’s Edge: America in the King Years, 1965-68 (Simon & Schuster)Poetry
Rajiv Chandrasekaran, Imperial Life in the Emerald City: Inside Iraq’s Green Zone (Alfred A. Knopf)
Timothy Egan, The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl (Houghton Mifflin)
Peter Hessler, Oracle Bones: A Journey Between China’s Past and Present (HarperCollins)
Lawrence Wright, The Looming Tower: Al-Qaeda and the Road to 9/11 (Alfred A. Knopf)
Louise Glück, Averno (Farrar, Straus & Giroux)Young People's Literature
H.L. Hix, Chromatic (Etruscan Press)
Ben Lerner, Angle of Yaw (Copper Canyon Press)
Nathaniel Mackey, Splay Anthem (New Directions)
James McMichael, Capacity (Farrar, Straus & Giroux)
M.T. Anderson, The Astonishing Life of Octavian Nothing, Traitor to the Nation, Vol. 1: The Pox Party (Candlewick Press)--Marshal Zeringue
Martine Leavitt, Keturah and Lord Death (Front Street Books/Boyds Mills Press)
Patricia McCormick, Sold (Hyperion Books for Children)
Nancy Werlin, The Rules of Survival (Dial/Penguin)
Gene Luen Yang, American Born Chinese (First Second/Roaring Brook Press/Holtzbrinck)