Others suggest that couples who delay or abstain from sexual intimacy early on allow communication to become the foundation of their attraction, and that this helps to ensure that companionship and partnership keep them together when the initial flames of lust die down.

ECONOMIST: Chastity before marriage may have its uses after all

They can also make communication feel more personal, restoring some of the intimacy that social-network sites and email, for that matter have stripped away.

WSJ: The End of the Email Era