This is actually very clever. Not Finding Out is a new kind of baby registry, targeted at people who aren't finding out if their baby is a boy or a girl. You go online, set up a baby registry and then register for two gifts (one boy, one girl) which appear side-by-side. When someone buys a gift, they are sent a picture preview card to give you of the two gifts.
When your baby is born, Not Finding Out sends you the correct gender gift. They even have special cards you can give your doctor to fill out and send back, revealing the gender only to Not Finding Out. Wish I'd thought of this!