When my fiancée, Claire, and I arrived at Kristen and Jeff’s house last October, our meeting was a testament to the power of social media to connect people with similar situations. Though we had never met any of the attendees in person, we weren’t rolling into a group of strangers, but an extended family separated only by distance and length of Facebook friendship.

From left to right are Chad and Andrea; Glen and Monica; Jeff and Kristen; and Kenny and Claire.

From left to right are Chad an