Zero Configuration Networking (Zeroconf)

Zeroconfig
http://www.zeroconf.org/

Bonjour
www.apple.com/bonjour/

Multicast DNS
http://www.multicastdns.org/

DNS Service Discovery (DNS-SD)
http://www.dns-sd.org/

Zero Configuration Networking: The Definitive Guide by Daniel Steinberg and Stuart Cheshire, published by O'Reilly Media.
http://www.amazon.com/exec/obidos/redirect?path=ASIN%2F0596101007&link_code=as2&camp=1789&tag=zeroconfigurn-20&creative=9325