I don't sign up for e-mail lists.
I mean really: who does? You get so much junk mail anyway, there's no need to add more.
I do make one exception, though, and that is when I visit charming orchard-type places within an hour's drive of our home; of all the email lists that exist in the world, that's the one I definitely want to be on.
So when Harvest Moon Farm & Orchard - the North Salem, N.Y. farm that we visited for pumpkin-picking last fall - sent out an email blast saying "Come check out our Apple Blossom Hayride this weekend!" it got opened...