Concert reminder service

  A service desperately needed is a concert reminder service: you create a profile where you enter your location as well as the bands you like, and the system will send you an email as soon as it's known that one of "your" bands is coming to town. Getting an email along the lines of "Hey Steve, we just got word that The Kills will be coming to town next April - secure your tickets now" would be just so much nicer than reading in the newspaper how The Kills rocked the local club this past weekend.
  Needless to say that anyone providing such a service could earn a ton of money by providing links to ticket companies, so I'm really somewhat surprised that something like this doesn't seem to exist (yet).