There are two great series that I must link to. Read them. They are more worthy of your time and thought than going to Kos' site to read about his glee over Joe Lieberman's impending demise.
Frank Turk's series on marriage, entitled It's Not Up to You: 1, 2, 3, and 4.
Dan Edelen's series on "questions Christians are loathe to confront," entitled Gut Check.