Zeroconf-to-Zeroconf Toolkit (z2z) extends the reach of the Zeroconf service discovery (aka Bonjour by Apple) beyond local link. Yes, this means that it lets you access your iTunes music shares across the Internet.
JShare is a simple local network (LAN) file sharing utility based on the ZeroConf/Bonjour/UPnP protocol. It works on any operating system on which Java is supported and requires virtually no configuration.
Dox Discovery is an attempt to bring elegance and simplicity to finding and using networked services.
It uses Rendezvous/Zeroconf technology to auto-discover networked web services and generetes either an RSS site feed or a pretty web page.
Kwai is a pure Java Bonjour library (also known as Zeroconf). It implements the name resolution and service discovery (dnssd) portions of the specification, providing the same interface as Apple's mDNSResponder. Kwai means "Hello" in Abenaki.