Ad-hocracy? An economy based on, well, karma? Hmm. Cary Doctorow has written a story that takes place in a Wired paradise, with a murder mystery that's investigated by an immortal victim in Walt Disney World. I downloaded this book for free from Doctorow's web-site and read it on my off-time at work. At that price, this is a great read, and I'd even recommend the non-free dead-tree version as a great mystery for computer nerds.