My title is "Dir of Community and Marketing" and I tell people I'm not a "suit and tie marketing guy" and that helps a little. I instead tell them that I focus on the internal community of people already using the site and the external community of people who don't yet know they want to use to site. It helps me sleep at night a little : )
It's not a conscious thing, but my wife and I actually use social networking and other online tools quite a bit in our marriage. We tag URLs as "formatt" or "fortoby" when we find things that we think would interest the other. We often see how a day is going based on a Flickr stream. Facebook status can say a lot.
They say communication is key to a healthy marriage, so why not use online tools as just another way to communicate?
David G Great response - I totally agree. Facebook in particular is nothing more than a communication device - why wouldn't you want to communicate with your spouse?