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
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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)