Getting bored of the tunes you know and love?  Time for some new music, and what better way to discover it than using a few nifty technology tricks.  Here’s the formula, it’s simple:

• choose track to explore in iTunes on your Mac
• right-click, ‘play similar’
• growl notification sends iTunes data to last.fm client
• last.fm client requests similarity music data and streams results to you in seconds

Get the iTunes plugin, the last.fm client and growl notification service to make this all work.