Apple has this new feature on iTunes called Ping. Their attempt at an iTune Store fueled social network.
Just out of curiosity, I just turned the option on. So far since I buy most of my MP3 albums from Amazon, I don't think I'll be too compelled to participate unless there's something I'm missing.
The possible concert and album recommendations may or may not hold a potential draw but I'll hold in a cynical sigh until I will most likely be underwhelmed by the inevitable mediocrity of the whole social program.
So far, I've started to follow Yo Yo Ma and Kronos Quartet. I will be sparing and hold stringent guidelines on which artists I will follow in order to determine how long I will use this new social network if I use it at all.