"What Does Your Ringtone Say About You?" One excerpt:

If your phone plays a classic rock tune, you're showing your age, but you get points for figuring out how to change the ringer, Gramps.

If your phone is still playing "Jingle Bell Rock" in July, you're not going to impress people with your productivity.

If your ringtone is a current hip-hop or R&B hit, you're young at heart, but you're not particularly original. Hip-hop ringtones accounted for more than half of the $300 million U.S. market in 2004.

If your phone plays the sound of an old mechanical phone bell, you're not as funny as you think you are.

If your phone plays the theme song to a television show, you're not going to impress anyone with your intellectual acumen. Perhaps a Mozart or Beethoven ringer would do some damage control.

If your phone never leaves vibrate or silent mode, you may be the kind of important person who can't afford to waste time answering a phone call right now. Or maybe you just think you're that important. However, you may also be considerate and respectful, the kind of person we'd like sitting behind us in a movie theater.

Unfortunately, we tend to get saddled with seatmates whose phones play the popular "Crazy Frog," the clucking chicken, or any number of other annoying animal noises. If you're one of these folks, you may be a sociopath.

(Via Virginia Postrel.)