Peer-to-peer - Andy Oram

The term "peer-to-peer" has come to be applied to networks that
expect end users to contribute their own files, computing time, or
other resources to some shared project. Even more interesting than
the systems' technical underpinnings are their socially disruptive
potential: in various ways they return content, choice, and control to
ordinary users.While this book is mostly about the technical promise of peer-to-peer, we
also talk about its exciting social promise.
Communities have been forming
on the Internet for a long time, but they have been limited by the flat
interactive qualities of email and Network newsgroups. People can exchange
recommendations and ideas over these media, but have great difficulty
commenting on each other's postings, structuring information, performing
searches, or creating summaries. If tools provided ways to organize
information intelligently, and if each person could serve up his or her own
data and retrieve others' data, the possibilities for collaboration would take
off. Peer-to-peer technologies along with metadata could enhance almost any
group of people who share an interest--technical, cultural, political, medical,
you name it.This book presents the goals that drive the developers of the
best-known peer-to-peer systems, the problems they've faced, and the
technical solutions they've found.
Learn here the essentials of
peer-to-peer from leaders of the field:

• Nelson Minar and Marc Hedlund of target="new">Popular Power, on a
  history of peer-to-peer
• Clay Shirky of acceleratorgroup, on where peer-to-peer is likely
  to be headed
• Tim O'Reilly of O'Reilly & Associates, on redefining the public's perceptions
• Dan Bricklin, cocreator of Visicalc, on harvesting information from end-users
• David Anderson of SETI@home, on how SETI@Home created the world's
  largest computer
• Jeremie Miller of Jabber, on the Internet as a collection of
  conversations
• Gene Kan of Gnutella and GoneSilent.com, on lessons from Gnutella for
  peer-to-peer technologies
• Adam Langley of Freenet, on Freenet's present and upcoming
  architecture
• Alan Brown of Red Rover, on a deliberately low-tech
  content distribution system
• Marc Waldman, Lorrie Cranor, and Avi Rubin of AT&T Labs, on the Publius project and trust in distributed systems
• Roger Dingledine, Michael J. Freedman, andDavid Molnar of Free Haven,
  on resource allocation and accountability in distributed systems
• Rael Dornfest of O'Reilly Network and Dan Brickley of ILRT/RDF Web, on metadata
• Theodore Hong of Freenet, on performance
• Richard Lethin of Reputation Technologies, on how reputation can be
  built online
• Jon Udell ofBYTE
  and Nimisha Asthagiri andWalter Tuvell of Groove Networks, on security
• Brandon Wiley of Freenet, on gateways between peer-to-peer systems