Virtual Time Needed For A Virtual Life

Is it just me? How do people have time to stay involved in virtual communities? Facebook is a good example. No matter how much I read about Facebook or explore the site, I just don’t really get how I’m supposed to really utilize it. Clearly I’m missing something here since I have trouble keeping in touch with my full-bodied friends. When someone figures out how to create virtual time, then I can have a virtual life.