Record companies have been trying different marketing methods for some time now. Limited edition CDs, colored vinyl, combination packages (think CD with a t-shirt), and even flash drives with the bands logo on it along with the MP3s pre-loaded are all examples. Now it seems labels are trying to increase the fan base for artists as well.
From now until September 1 if you sign up your friends on Ingrid Michaelson's mailing list you'll be given the chance to download up to three bonus tracks. You'll get one free download just for signing up yourself.
Creative marketing? More nuisance e-mails that your friends may not want? Call it what you want, but if you're in the market for free music here's another opportunity.