Now that solo living is becoming increasingly popular around the world, we know much more about it than we did before. Below is what I have written on the topic so far. You may also want to take a look at the chapter on living alone in How We Live Now: Redefining Home and Family in the 21st Century.
Living Alone: The Basics
What We Get Out of Living Alone
(Also see this collection of articles on solitude)
Implications for Society of the Rise of Solo Living
Who Is Good at Living Alone?
Living Alone in Later Life
Living Alone: Backlash and Mockery
Living Alone: Some Other Topics and Themes