New this month: Matt Richtel's Hooked.
About the book, from the author's website:
Nat Idle, a medical student turned journalist, sits in a San Francisco cafe when a woman puts a folded note on his table. Nat picks up the note, walks to the door to follow her, opens the note and reads: Get out of the Cafe, NOW! The cafe explodes. Sitting in the rubble, he discovers the impossible: the handwriting on the note appears to belong to his deceased ex-girlfriend, a powerful venture capitalists who died four years earlier.
Thus begins Hooked and Nat's frantic quest for answers. His search ultimately presents him with a series of surprises and twists and leads him to discover unnerving truths about himself, and the frenetically-paced digital world he inhabits.