I don’t know why I didn’t do this a long time ago, but I have set up a “Childless by Marriage” Google group. There’s not much in it right now, but judging by the number of e-mails I get on this topic, it will grow quickly. Access the group at http://groups.google.com/group/childless-by-marriage. Come one and all. We have a lot to share.
As you probably know, I’m a writer working on a book and articles about childlessness, but I promise I will never quote you without asking for your permission, so have at it.