Stanley Kurtz has an excellent article on the history of gay marriage in the Scandinavian countries and the impending dissolution of the institution of marriage in Scandinavia.
One thing that struck me is the utter failure of christianity to go on the offensive in propagating the institution of marriage. Christianity is a faith whose charge is to spread the word throughout the world. You would think the dissolution of marriage into a sea of cohabiting couples would create alarm, organization, and a counterattack not only to gain back the territory lost but spread and deepen the christian message. Instead, the scandinavian churches have largely failed to even hold the line, much less create any sort of gain for their message. They reveal themselves as impotent and hollow institutions badly in need of regeneration and renewal.