Tangerine
Tangerine is an application that allows you to publish music over the local network, using DAAP. It runs on Linux, Windows, and Mac OS X. There are several clients that you can then use to connect to it, such as Apple’s iTunes, Banshee, and Rhythmbox.
Music files can be specified either by a directory, or can be automatically discovered using Beagle, Google Desktop, or Spotlight. Recently you can also specify which music player you use and share the songs in it’s collection. For typical configurations, a graphical tool is included (see below).

The control panel for Tangerine (under Linux)

The preferences window for Tangerine (under Windows)
You can also see a screencast of Tangerine in action here.
Current Source Release: tangerine-0.3.0.tar.gz
Current Windows Release: TangerineSetup-0.3.0.exe
Current Mac OS X Release: tangerine-0.3.0.dmg
Older Releases
The latest code is always available from the subversion repository
svn co svn://snorp.net/trunk/tangerine
Comments, bugs, etc. can be mailed to me. There is also an IRC channel, #tangerine on GIMPNet (irc.gimp.org).
