One thing I didn't see regards the behavior of family and friends of new parents after the birth.
When someone you know has a baby, be extra considerate of the fact that they are probably a) tired, b) overwhelmed, c) afraid, or d) any combination of the above. Don't keep them on the phone for too long, and don't drop by at all unless they express some desire for you to do so. If are invited to drop by, show up prepared to offer your help, even if all you're willing to offer is to mutually ignore the social niceties that are impossible with a newborn. If you're not willing to offer even that much to the new parents, do everyone a favor and stay home until they've got everything more figured out.