Encyclopedia of the Life Course and Human Development
Macmillan / Gale Virtual Reference Library.
Available online. (W&L subscription)
Three-volume set (2008) contains nearly 400 signed entries which examine "three key life stages [Childhood and Adolescence; Adulthood; and Later Life] from a sociological perspective, exploring how enduring experiences, as well as transitions and events such as childcare, education, stress, marriage, career, addiction, friendship, parenthood, disease, spirituality, and retirement influence the individual's life course."
Links will be maintained in several locations in the library Web site, including here.