As I updated Synergy to version 3.1 today (although this version is already out for a few weeks) I saw that Wincent integrated support for Audioscrobbler. That is great as I already use this technology with Last.fm.
So now my account is filled with track information from the Last.fm client and iTunes.
And, fortunately, there is also a very nice WordPress Plugin named Scrobbler (created by Florian Kriener) to display recently played tracks as you can see at the bottom of the sidebar.

Technorati Tags: audioscrobbler, itunes, wordpress