An article from The Atlantic on divorce and the author's suggestions for alternatives to traditional marriage: http://www.theatlantic.com/doc/200907/divorce
My friend wrote that everyone on her F-list seems to hate it.
Personally, I liked it. But then, I'm a die-hard romantic who has a very cynical attitude toward traditional marriage.
I recognized more than a few elements of my own former marriage in the article, plus those of a couple of friends.
Marriage is an idealistic institution which I think most people would really like to have unfold as per our cultural dreams. The reality, however, seems to fall short far too often. Promising to stay together "until death do us part" sets us up for failure in a world where we live far longer than our even recent ancestors, with far more complex lives.
Personally, I think that there need to be more socially-acceptable ways for people to pair up -- or triad or group up -- to create domestic/sexual/parenting alliances. It will make life a lot easier for a lot of us, including kids.
My biggest twitch with the article was her dismissal of "open marriage" as a failed idea which most people find "icky." In fact, more and more people are embracing polyamory as a healthy way of acknowledging that long-term monogamy is not always the best relationship model for all people. It's not for everyone, but neither is monogamy.
At it's core, marriage is a very private and personal institution. No one can truly understand the full dynamics of someone else's marriage. I would never try to prescribe what marriage "should" be for everyone. What I advocate for is opening up our cultural sensibilities to allow for more legitimate options in the area of personal unions and family-making.