A longtime observer of life online, Doctorow, a digital-rights activist, depicts a cashless economy based on the constant, automatic tracking of public reputations by a nameless online utility. The book is similar to Reamde, in the sense that it's set in online - but Down and Out in the Magic Kingdom is less action-packed, but conceptually thought-provoking - with the idea that the body could perhaps be obselete.
Set mostly in a Walt Disney World, where they try to use brain patterns to create the best ride experiences ever. And when a young man, Jules, who's just 100 years old, is killed, he's going all out in a war to try and get justice back for himself. Even if he doesn't have a body anymore.