It's early February. Do you know where your favorite band is?
After installing iConcertCal, the iTunes visualizer becomes a calendar that lists local concert dates for bands in your library. Clicking on each listing in the calendar lets you buy tickets, and changing the city and state brings up personalized listings for other cities.
Since a co-worker sent out a link to this free plug-in last week, I've been hooked. It eliminates the hassle of having to check local papers and Web sites to see who's coming to your neck of the woods and the need to sign up for an individual artist's mailing list. It's also a good reason to clean up those ID3 tags.