DAAP is a protocol to share media over a network. It was first used for the iTunes music player, but is used widely now. The current state is that the DAAP-plugin won't work with a recent iTunes, the Firefly media server is known to work.
Amarok will show the tracks from the server in the icon to be sure you are not in Merged View.pane if you enable the DAAP Collection in . If the collection is not showing up, click the