When you sign up for Ben & Jerry's chunk Mail, you're rewarded when it's halfway to your next birthday. They send you a printable coupon for a B.O.G.O. ice cream treat! What other e-newsletter club does that?

http://benandjerrys.fbmta.com/ViewOnce/ViewCoupon.aspx?Member=484e77d4acf64abcbe58409c6a527f6f&Coupon=MaG+cxbadwQ=